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68837216 = 2571718077
BaseRepresentation
bin1000001101001…
…01111101100000
311210112021220112
410012211331200
5120110242331
610455230452
71464051410
oct406457540
9153467815
1068837216
1135947468
121b078428
13113524a6
1491dc640
15609b32b
hex41a5f60

68837216 has 48 divisors (see below), whose sum is σ = 164003616. Its totient is φ = 27764736.

The previous prime is 68837191. The next prime is 68837221. The reversal of 68837216 is 61273886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5231 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (3416742).

Almost surely, 268837216 is an apocalyptic number.

It is an amenable number.

68837216 is an abundant number, since it is smaller than the sum of its proper divisors (95166400).

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

68837216 is a wasteful number, since it uses less digits than its factorization.

68837216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18111 (or 18103 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 68837216 is about 8296.8196316420. The cubic root of 68837216 is about 409.8337934291.

The spelling of 68837216 in words is "sixty-eight million, eight hundred thirty-seven thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 18077 36154 72308 126539 144616 253078 289232 307309 506156 578464 614618 1012312 1229236 2024624 2151163 2458472 4049248 4302326 4916944 8604652 9833888 17209304 34418608 68837216