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68112572 = 22117121803
BaseRepresentation
bin1000000111101…
…01000010111100
311202011110212212
410003311002330
5114414100242
610431515552
71454642633
oct403650274
9152143785
1068112572
11354a1a90
121a988bb8
131115a6c8
14909051a
155ea6782
hex40f50bc

68112572 has 24 divisors (see below), whose sum is σ = 131870592. Its totient is φ = 30522800.

The previous prime is 68112563. The next prime is 68112581. The reversal of 68112572 is 27521186.

It is an interprime number because it is at equal distance from previous prime (68112563) and next prime (68112581).

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, 7778 + ... + 14025.

It is an arithmetic number, because the mean of its divisors is an integer number (5494608).

Almost surely, 268112572 is an apocalyptic number.

It is an amenable number.

68112572 is a deficient number, since it is larger than the sum of its proper divisors (63758020).

68112572 is a wasteful number, since it uses less digits than its factorization.

68112572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21889 (or 21887 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 68112572 is about 8253.0341087384. The cubic root of 68112572 is about 408.3906213482.

The spelling of 68112572 in words is "sixty-eight million, one hundred twelve thousand, five hundred seventy-two".

Divisors: 1 2 4 11 22 44 71 142 284 781 1562 3124 21803 43606 87212 239833 479666 959332 1548013 3096026 6192052 17028143 34056286 68112572