201600 has 144 divisors (see below), whose sum is σ = 822120. Its totient is φ = 46080.

The previous prime is 201599. The next prime is 201611. The reversal of 201600 is 6102.

It is a Cunningham number, because it is equal to 449^{2}-1.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number *n* which divided by its sum of digits gives 201600.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28797 + ... + 28803.

2^{201600} is an apocalyptic number.

201600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411060).

201600 is an abundant number, since it is smaller than the sum of its proper divisors (620520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201600 is a wasteful number, since it uses less digits than its factorization.

201600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201600 is about 448.9988864129. The cubic root of 201600 is about 58.6358883551.

Adding to 201600 its reverse (6102), we get a palindrome (207702).

The spelling of 201600 in words is "two hundred one thousand, six hundred".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 50 56 60 63 64 70 72 75 80 84 90 96 100 105 112 120 126 128 140 144 150 160 168 175 180 192 200 210 224 225 240 252 280 288 300 315 320 336 350 360 384 400 420 448 450 480 504 525 560 576 600 630 640 672 700 720 800 840 896 900 960 1008 1050 1120 1152 1200 1260 1344 1400 1440 1575 1600 1680 1800 1920 2016 2100 2240 2400 2520 2688 2800 2880 3150 3200 3360 3600 4032 4200 4480 4800 5040 5600 5760 6300 6720 7200 8064 8400 9600 10080 11200 12600 13440 14400 16800 20160 22400 25200 28800 33600 40320 50400 67200 100800 201600

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.130 sec. • engine limits •