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50107131720 = 23325891563893
BaseRepresentation
bin101110101010100111…
…100010011101001000
311210100001102000201100
4232222213202131020
51310104411203340
635004025421400
73422462410062
oct565247423510
9153301360640
1050107131720
111a283195768
12986493a860
13495700c689
1425d4a5a732
151483ea7830
hexbaa9e2748

50107131720 has 96 divisors (see below), whose sum is σ = 164678038200. Its totient is φ = 13211759616.

The previous prime is 50107131713. The next prime is 50107131727. The reversal of 50107131720 is 2713170105.

It is a happy number.

50107131720 is a `hidden beast` number, since 501 + 0 + 7 + 131 + 7 + 20 = 666.

50107131720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50107131713) and next prime (50107131727).

It can be written as a sum of positive squares in 4 ways, for example, as 30044675556 + 20062456164 = 173334^2 + 141642^2 .

It is not an unprimeable number, because it can be changed into a prime (50107131727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 749907 + ... + 813986.

Almost surely, 250107131720 is an apocalyptic number.

It is an amenable number.

50107131720 is an abundant number, since it is smaller than the sum of its proper divisors (114570906480).

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

50107131720 is a wasteful number, since it uses less digits than its factorization.

50107131720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563999 (or 1563992 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The spelling of 50107131720 in words is "fifty billion, one hundred seven million, one hundred thirty-one thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 89 90 120 178 180 267 356 360 445 534 712 801 890 1068 1335 1602 1780 2136 2670 3204 3560 4005 5340 6408 8010 10680 16020 32040 1563893 3127786 4691679 6255572 7819465 9383358 12511144 14075037 15638930 18766716 23458395 28150074 31277860 37533432 46916790 56300148 62555720 70375185 93833580 112600296 139186477 140750370 187667160 278372954 281500740 417559431 556745908 563001480 695932385 835118862 1113491816 1252678293 1391864770 1670237724 2087797155 2505356586 2783729540 3340475448 4175594310 5010713172 5567459080 6263391465 8351188620 10021426344 12526782930 16702377240 25053565860 50107131720