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57504749028 = 2236067789857
BaseRepresentation
bin110101100011100011…
…001101010111100100
312111102121022220220120
4311203203031113210
51420232203432103
642230050201540
74104010205346
oct654343152744
9174377286816
1057504749028
1122429a28081
12b18a2832b0
13556580151c
142ad731b296
151768664253
hexd638cd5e4

57504749028 has 24 divisors (see below), whose sum is σ = 134200033632. Its totient is φ = 19165065984.

The previous prime is 57504749023. The next prime is 57504749047. The reversal of 57504749028 is 82094740575.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57504749023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 322125 + ... + 467732.

It is an arithmetic number, because the mean of its divisors is an integer number (5591668068).

Almost surely, 257504749028 is an apocalyptic number.

It is an amenable number.

57504749028 is an abundant number, since it is smaller than the sum of its proper divisors (76695284604).

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

57504749028 is a wasteful number, since it uses less digits than its factorization.

57504749028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795931 (or 795929 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 57504749028 in words is "fifty-seven billion, five hundred four million, seven hundred forty-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 6067 12134 18201 24268 36402 72804 789857 1579714 2369571 3159428 4739142 9478284 4792062419 9584124838 14376187257 19168249676 28752374514 57504749028