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57144726708 = 2234762060559
BaseRepresentation
bin110101001110000101…
…110101010010110100
312110111111212220010120
4311032011311102310
51414013022223313
642130225451540
74062046106526
oct651605652264
9173444786116
1057144726708
1122264787a73
12b0a97a0bb0
135509049574
142aa15a1a16
151746c4ad23
hexd4e1754b4

57144726708 has 12 divisors (see below), whose sum is σ = 133337695680. Its totient is φ = 19048242232.

The previous prime is 57144726631. The next prime is 57144726733. The reversal of 57144726708 is 80762744175.

57144726708 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381030268 + ... + 2381030291.

It is an arithmetic number, because the mean of its divisors is an integer number (11111474640).

Almost surely, 257144726708 is an apocalyptic number.

It is an amenable number.

57144726708 is an abundant number, since it is smaller than the sum of its proper divisors (76192968972).

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

57144726708 is a wasteful number, since it uses less digits than its factorization.

57144726708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762060566 (or 4762060564 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 51.

The spelling of 57144726708 in words is "fifty-seven billion, one hundred forty-four million, seven hundred twenty-six thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 4762060559 9524121118 14286181677 19048242236 28572363354 57144726708