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50859137970 = 23259715493761
BaseRepresentation
bin101111010111011100…
…001101101110110010
311212021110102220100200
4233113130031232302
51313124414403340
635210411500030
73450223353114
oct572734155662
9155243386320
1050859137970
111a629726133
129a34757616
134a46a5a3a4
1426668913b4
1514c9eee330
hexbd770dbb2

50859137970 has 96 divisors (see below), whose sum is σ = 133718785200. Its totient is φ = 13410385920.

The previous prime is 50859137963. The next prime is 50859138019. The reversal of 50859137970 is 7973195805.

50859137970 is a `hidden beast` number, since 508 + 59 + 13 + 7 + 9 + 70 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 15248051289 + 35611086681 = 123483^2 + 188709^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13520890 + ... + 13524650.

Almost surely, 250859137970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50859137970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66859392600).

50859137970 is an abundant number, since it is smaller than the sum of its proper divisors (82859647230).

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

50859137970 is a wasteful number, since it uses less digits than its factorization.

50859137970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420 (or 5417 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 54.

The spelling of 50859137970 in words is "fifty billion, eight hundred fifty-nine million, one hundred thirty-seven thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 97 194 291 485 582 873 970 1455 1549 1746 2910 3098 3761 4365 4647 7522 7745 8730 9294 11283 13941 15490 18805 22566 23235 27882 33849 37610 46470 56415 67698 69705 112830 139410 150253 169245 300506 338490 364817 450759 729634 751265 901518 1094451 1352277 1502530 1824085 2188902 2253795 2704554 3283353 3648170 4507590 5472255 5825789 6566706 6761385 10944510 11651578 13522770 16416765 17477367 29128945 32833530 34954734 52432101 58257890 87386835 104864202 174773670 262160505 524321010 565101533 1130203066 1695304599 2825507665 3390609198 5085913797 5651015330 8476522995 10171827594 16953045990 25429568985 50859137970