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68057612 = 2274994871
BaseRepresentation
bin1000000111001…
…11101000001100
311202001200111022
410003213220030
5114410320422
610430413312
71454323460
oct403475014
9152050438
1068057612
1135464767
121a961238
131113b69c
1490784a0
155e95342
hex40e7a0c

68057612 has 24 divisors (see below), whose sum is σ = 136416000. Its totient is φ = 29103120.

The previous prime is 68057609. The next prime is 68057623. The reversal of 68057612 is 21675086.

It is a super-2 number, since 2×680576122 = 9263677102285088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11537 + ... + 16407.

It is an arithmetic number, because the mean of its divisors is an integer number (5684000).

Almost surely, 268057612 is an apocalyptic number.

It is an amenable number.

68057612 is an abundant number, since it is smaller than the sum of its proper divisors (68358388).

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

68057612 is a wasteful number, since it uses less digits than its factorization.

68057612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381 (or 5379 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 68057612 is about 8249.7037522568. The cubic root of 68057612 is about 408.2807483953.

The spelling of 68057612 in words is "sixty-eight million, fifty-seven thousand, six hundred twelve".

Divisors: 1 2 4 7 14 28 499 998 1996 3493 4871 6986 9742 13972 19484 34097 68194 136388 2430629 4861258 9722516 17014403 34028806 68057612