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57401309672 = 2371025023387
BaseRepresentation
bin110101011101011000…
…100111100111101000
312111011101200122210022
4311131120213213220
51420024213402142
642211513140012
74101313040030
oct653530474750
9174141618708
1057401309672
11223865a7603
12b15b6ba608
13554a2553c5
142ac76b28c0
15175e5306d2
hexd5d6279e8

57401309672 has 16 divisors (see below), whose sum is σ = 123002806560. Its totient is φ = 24600561264.

The previous prime is 57401309657. The next prime is 57401309677. The reversal of 57401309672 is 27690310475.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57401309677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512511638 + ... + 512511749.

It is an arithmetic number, because the mean of its divisors is an integer number (7687675410).

Almost surely, 257401309672 is an apocalyptic number.

It is an amenable number.

57401309672 is an abundant number, since it is smaller than the sum of its proper divisors (65601496888).

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

57401309672 is a wasteful number, since it uses less digits than its factorization.

57401309672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025023400 (or 1025023396 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 57401309672 in words is "fifty-seven billion, four hundred one million, three hundred nine thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 1025023387 2050046774 4100093548 7175163709 8200187096 14350327418 28700654836 57401309672