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57147014738 = 21161272
BaseRepresentation
bin110101001110001110…
…100011111001010010
312110111200012010201102
4311032032203321102
51414014113432423
642130350504402
74062104416262
oct651616437122
9173450163642
1057147014738
1122266000000
12b0aa505102
13550966ab28
142aa19d97a2
15174704dc28
hexd4e3a3e52

57147014738 has 42 divisors (see below), whose sum is σ = 95040876807. Its totient is φ = 25771381020.

The previous prime is 57147014737. The next prime is 57147014741. The reversal of 57147014738 is 83741074175.

It can be written as a sum of positive squares in only one way, i.e., 28573507369 + 28573507369 = 169037^2 + 169037^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=169037.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 57147014692 and 57147014701.

It is not an unprimeable number, because it can be changed into a prime (57147014737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 449976431 + ... + 449976557.

Almost surely, 257147014738 is an apocalyptic number.

57147014738 is a deficient number, since it is larger than the sum of its proper divisors (37893862069).

57147014738 is an frugal number, since it uses more digits than its factorization.

57147014738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 57147014738 in words is "fifty-seven billion, one hundred forty-seven million, fourteen thousand, seven hundred thirty-eight".

Divisors: 1 2 11 22 121 127 242 254 1331 1397 2662 2794 14641 15367 16129 29282 30734 32258 161051 169037 177419 322102 338074 354838 1771561 1859407 1951609 3543122 3718814 3903218 20453477 21467699 40906954 42935398 224988247 236144689 449976494 472289378 2597591579 5195183158 28573507369 57147014738