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68653156 = 221113196317
BaseRepresentation
bin1000001011110…
…01000001100100
311210011221102111
410011321001210
5120033400111
610451250404
71462353655
oct405710144
9153157374
1068653156
1135831150
121aba9a04
13112b9790
14919152c
156061a21
hex4179064

68653156 has 48 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 27285120.

The previous prime is 68653153. The next prime is 68653163. The reversal of 68653156 is 65135686.

It is not an unprimeable number, because it can be changed into a prime (68653153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7710 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (3095820).

Almost surely, 268653156 is an apocalyptic number.

It is an amenable number.

68653156 is an abundant number, since it is smaller than the sum of its proper divisors (79946204).

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

68653156 is a wasteful number, since it uses less digits than its factorization.

68653156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6362 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 68653156 is about 8285.7200049241. The cubic root of 68653156 is about 409.4681901243.

The spelling of 68653156 in words is "sixty-eight million, six hundred fifty-three thousand, one hundred fifty-six".

Divisors: 1 2 4 11 13 19 22 26 38 44 52 76 143 209 247 286 418 494 572 836 988 2717 5434 6317 10868 12634 25268 69487 82121 120023 138974 164242 240046 277948 328484 480092 903331 1320253 1560299 1806662 2640506 3120598 3613324 5281012 6241196 17163289 34326578 68653156