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68568612 = 22372335491
BaseRepresentation
bin1000001011001…
…00011000100100
311210000122110020
410011210120210
5120023143422
610445355140
71461552330
oct405443044
9153018406
1068568612
1135783682
121ab68ab0
131128a158
14916c7c0
15604695c
hex4164624

68568612 has 48 divisors (see below), whose sum is σ = 190804992. Its totient is φ = 18738720.

The previous prime is 68568607. The next prime is 68568631. The reversal of 68568612 is 21686586.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 15814 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (3975104).

Almost surely, 268568612 is an apocalyptic number.

It is an amenable number.

68568612 is an abundant number, since it is smaller than the sum of its proper divisors (122236380).

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

68568612 is a wasteful number, since it uses less digits than its factorization.

68568612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528 (or 35526 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 68568612 is about 8280.6166437047. The cubic root of 68568612 is about 409.3000390844.

The spelling of 68568612 in words is "sixty-eight million, five hundred sixty-eight thousand, six hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 35491 70982 106473 141964 212946 248437 425892 496874 745311 816293 993748 1490622 1632586 2448879 2981244 3265172 4897758 5714051 9795516 11428102 17142153 22856204 34284306 68568612