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57056150420 = 2255353826557
BaseRepresentation
bin110101001000110011…
…111100001110010100
312110021100012202022022
4311020303330032110
51413322333303140
642113343152312
74056622163603
oct651063741624
9173240182268
1057056150420
1122219789325
12b083ba5698
1354c38a5669
142a93905a3a
15173e0a10b5
hexd48cfc394

57056150420 has 24 divisors (see below), whose sum is σ = 122078633544. Its totient is φ = 22391847296.

The previous prime is 57056150419. The next prime is 57056150443. The reversal of 57056150420 is 2405165075.

57056150420 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 4 ways, for example, as 987593476 + 56068556944 = 31426^2 + 236788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26912219 + ... + 26914338.

It is an arithmetic number, because the mean of its divisors is an integer number (5086609731).

Almost surely, 257056150420 is an apocalyptic number.

It is an amenable number.

57056150420 is an abundant number, since it is smaller than the sum of its proper divisors (65022483124).

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

57056150420 is a wasteful number, since it uses less digits than its factorization.

57056150420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53826619 (or 53826617 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 57056150420 in words is "fifty-seven billion, fifty-six million, one hundred fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 53826557 107653114 215306228 269132785 538265570 1076531140 2852807521 5705615042 11411230084 14264037605 28528075210 57056150420