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57742857486 = 2326121524087
BaseRepresentation
bin110101110001101111…
…100001010100001110
312112001012101002022100
4311301233201110032
51421224132414421
642305433455530
74112631122166
oct656157412416
9175035332270
1057742857486
1122541379526
12b235b715a6
1355a2c3c3c2
142b1abbd5a6
15177e4e9c26
hexd71be150e

57742857486 has 24 divisors (see below), whose sum is σ = 125130202704. Its totient is φ = 19244437920.

The previous prime is 57742857467. The next prime is 57742857521. The reversal of 57742857486 is 68475824775.

It is a happy number.

57742857486 is a `hidden beast` number, since 5 + 7 + 74 + 2 + 85 + 7 + 486 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 151866 + ... + 372221.

It is an arithmetic number, because the mean of its divisors is an integer number (5213758446).

Almost surely, 257742857486 is an apocalyptic number.

57742857486 is an abundant number, since it is smaller than the sum of its proper divisors (67387345218).

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

57742857486 is a wasteful number, since it uses less digits than its factorization.

57742857486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530216 (or 530213 counting only the distinct ones).

The product of its digits is 105369600, while the sum is 63.

The spelling of 57742857486 in words is "fifty-seven billion, seven hundred forty-two million, eight hundred fifty-seven thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 18 6121 12242 18363 36726 55089 110178 524087 1048174 1572261 3144522 4716783 9433566 3207936527 6415873054 9623809581 19247619162 28871428743 57742857486