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68057456 = 2461103677
BaseRepresentation
bin1000000111001…
…11100101110000
311202001200021112
410003213211300
5114410314311
610430412452
71454323145
oct403474560
9152050245
1068057456
1135464635
121a961128
131113b5ac
1490783cc
155e9528b
hex40e7970

68057456 has 40 divisors (see below), whose sum is σ = 135524064. Its totient is φ = 33096960.

The previous prime is 68057453. The next prime is 68057471. The reversal of 68057456 is 65475086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68057453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100190 + ... + 100866.

Almost surely, 268057456 is an apocalyptic number.

It is an amenable number.

68057456 is a deficient number, since it is larger than the sum of its proper divisors (67466608).

68057456 is a wasteful number, since it uses less digits than its factorization.

68057456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 68057456 is about 8249.6942973664. The cubic root of 68057456 is about 408.2804364446.

The spelling of 68057456 in words is "sixty-eight million, fifty-seven thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 61 103 122 206 244 412 488 677 824 976 1354 1648 2708 5416 6283 10832 12566 25132 41297 50264 69731 82594 100528 139462 165188 278924 330376 557848 660752 1115696 4253591 8507182 17014364 34028728 68057456