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61412568 = 23371721503
BaseRepresentation
bin1110101001000…
…1010011011000
311021120002012120
43222101103120
5111210200233
610032141240
71343666250
oct352212330
9137502176
1061412568
1131736198
1218697820
13c952bc9
148228960
1555d14b3
hex3a914d8

61412568 has 64 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 16513536.

The previous prime is 61412537. The next prime is 61412609. The reversal of 61412568 is 86521416.

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, 7896 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 261412568 is an apocalyptic number.

61412568 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61412568 is an abundant number, since it is smaller than the sum of its proper divisors (124381992).

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

61412568 is a wasteful number, since it uses less digits than its factorization.

61412568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536 (or 21532 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 61412568 is about 7836.6171273069. The cubic root of 61412568 is about 394.5351964755.

The spelling of 61412568 in words is "sixty-one million, four hundred twelve thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 84 102 119 136 168 204 238 357 408 476 714 952 1428 2856 21503 43006 64509 86012 129018 150521 172024 258036 301042 365551 451563 516072 602084 731102 903126 1096653 1204168 1462204 1806252 2193306 2558857 2924408 3612504 4386612 5117714 7676571 8773224 10235428 15353142 20470856 30706284 61412568