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57154915492 = 2214288728873
BaseRepresentation
bin110101001110101100…
…101100110010100100
312110112020001112111221
4311032230230302210
51414023124243432
642131232110124
74062231523453
oct651654546244
9173466045457
1057154915492
112226a506a54
12b0b1095344
13550b1a602c
142aa2a94b9a
151747aaeb97
hexd4eb2cca4

57154915492 has 6 divisors (see below), whose sum is σ = 100021102118. Its totient is φ = 28577457744.

The previous prime is 57154915463. The next prime is 57154915529. The reversal of 57154915492 is 29451945175.

57154915492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43674312256 + 13480603236 = 208984^2 + 116106^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7144364433 + ... + 7144364440.

Almost surely, 257154915492 is an apocalyptic number.

It is an amenable number.

57154915492 is a deficient number, since it is larger than the sum of its proper divisors (42866186626).

57154915492 is a wasteful number, since it uses less digits than its factorization.

57154915492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288728877 (or 14288728875 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 52.

The spelling of 57154915492 in words is "fifty-seven billion, one hundred fifty-four million, nine hundred fifteen thousand, four hundred ninety-two".

Divisors: 1 2 4 14288728873 28577457746 57154915492