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57143776274 = 2135341468633
BaseRepresentation
bin110101001110000010…
…001101010000010010
312110111110002121101022
4311032002031100102
51414012301320044
642130153235442
74062035040554
oct651602152022
9173443077338
1057143776274
1122264198992
12b0a9402b82
135508aa5a90
142aa13d54d4
151746b0e3ee
hexd4e08d412

57143776274 has 16 divisors (see below), whose sum is σ = 94050861912. Its totient is φ = 25876426368.

The previous prime is 57143776271. The next prime is 57143776301. The reversal of 57143776274 is 47267734175.

It can be written as a sum of positive squares in 4 ways, for example, as 36650422249 + 20493354025 = 191443^2 + 143155^2 .

It is a super-2 number, since 2×571437762742 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (57143776271) 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, 20732939 + ... + 20735694.

Almost surely, 257143776274 is an apocalyptic number.

57143776274 is a deficient number, since it is larger than the sum of its proper divisors (36907085638).

57143776274 is a wasteful number, since it uses less digits than its factorization.

57143776274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41468701.

The product of its digits is 6914880, while the sum is 53.

The spelling of 57143776274 in words is "fifty-seven billion, one hundred forty-three million, seven hundred seventy-six thousand, two hundred seventy-four".

Divisors: 1 2 13 26 53 106 689 1378 41468633 82937266 539092229 1078184458 2197837549 4395675098 28571888137 57143776274