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68600605 = 5231135279
BaseRepresentation
bin1000001011011…
…00001100011101
311210002021100011
410011230030131
5120030204410
610450203221
71462044523
oct405541435
9153067304
1068600605
11357a5717
121ab83511
131129b898
14917a313
15605118a
hex416c31d

68600605 has 16 divisors (see below), whose sum is σ = 86676480. Its totient is φ = 52019968.

The previous prime is 68600557. The next prime is 68600611. The reversal of 68600605 is 50600686.

It is a cyclic number.

It is not a de Polignac number, because 68600605 - 219 = 68076317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10356 + ... + 15634.

It is an arithmetic number, because the mean of its divisors is an integer number (5417280).

Almost surely, 268600605 is an apocalyptic number.

It is an amenable number.

68600605 is a deficient number, since it is larger than the sum of its proper divisors (18075875).

68600605 is a wasteful number, since it uses less digits than its factorization.

68600605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68600605 is about 8282.5482189964. The cubic root of 68600605 is about 409.3636867685.

The spelling of 68600605 in words is "sixty-eight million, six hundred thousand, six hundred five".

Divisors: 1 5 23 113 115 565 2599 5279 12995 26395 121417 596527 607085 2982635 13720121 68600605