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61310668 = 22123712391
BaseRepresentation
bin1110100111100…
…0011011001100
311021100220102111
43221320123030
5111143420133
610030033404
71343063206
oct351703314
9137326374
1061310668
1131676681
1218648864
13c918703
1481dd776
1555b11cd
hex3a786cc

61310668 has 12 divisors (see below), whose sum is σ = 107389072. Its totient is φ = 30628080.

The previous prime is 61310629. The next prime is 61310671. The reversal of 61310668 is 86601316.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248 + ... + 11143.

Almost surely, 261310668 is an apocalyptic number.

It is an amenable number.

61310668 is a deficient number, since it is larger than the sum of its proper divisors (46078404).

61310668 is a wasteful number, since it uses less digits than its factorization.

61310668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13632 (or 13630 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 61310668 is about 7830.1128982921. The cubic root of 61310668 is about 394.3168622686.

The spelling of 61310668 in words is "sixty-one million, three hundred ten thousand, six hundred sixty-eight".

Divisors: 1 2 4 1237 2474 4948 12391 24782 49564 15327667 30655334 61310668