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57831403044 = 22323533953473
BaseRepresentation
bin110101110111000001…
…010010111000100100
312112021100222122222110
4311313001102320210
51421414314344134
642322315401020
74115054546412
oct656701227044
9175240878873
1057831403044
1122587357078
12b25b753170
1355b83a231c
142b2886c2b2
15178718a7e9
hexd77052e24

57831403044 has 48 divisors (see below), whose sum is σ = 143463664512. Its totient is φ = 18091087872.

The previous prime is 57831403043. The next prime is 57831403051. The reversal of 57831403044 is 44030413875.

It is a junction number, because it is equal to n+sod(n) for n = 57831402993 and 57831403011.

It is not an unprimeable number, because it can be changed into a prime (57831403043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962109 + ... + 1991364.

It is an arithmetic number, because the mean of its divisors is an integer number (2988826344).

Almost surely, 257831403044 is an apocalyptic number.

It is an amenable number.

57831403044 is an abundant number, since it is smaller than the sum of its proper divisors (85632261468).

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

57831403044 is a wasteful number, since it uses less digits than its factorization.

57831403044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953556 (or 3953554 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 57831403044 in words is "fifty-seven billion, eight hundred thirty-one million, four hundred three thousand, forty-four".

Divisors: 1 2 3 4 6 12 23 46 53 69 92 106 138 159 212 276 318 636 1219 2438 3657 4876 7314 14628 3953473 7906946 11860419 15813892 23720838 47441676 90929879 181859758 209534069 272789637 363719516 419068138 545579274 628602207 838136276 1091158548 1257204414 2514408828 4819283587 9638567174 14457850761 19277134348 28915701522 57831403044