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31059415900 = 22521916347061
BaseRepresentation
bin11100111011010010…
…010001001101011100
32222011120202210210001
4130323102101031130
51002102202302100
622133555024044
72146452451642
oct347322211534
988146683701
1031059415900
1112199259967
12602989b024
132c0ca06406
141709021192
15c1bb44d6a
hex73b49135c

31059415900 has 36 divisors (see below), whose sum is σ = 70946249080. Its totient is φ = 11769883200.

The previous prime is 31059415897. The next prime is 31059415909. The reversal of 31059415900 is 951495013.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31059415900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31059415909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8171631 + ... + 8175430.

Almost surely, 231059415900 is an apocalyptic number.

It is an amenable number.

31059415900 is an abundant number, since it is smaller than the sum of its proper divisors (39886833180).

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

31059415900 is a wasteful number, since it uses less digits than its factorization.

31059415900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16347094 (or 16347087 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 37.

The spelling of 31059415900 in words is "thirty-one billion, fifty-nine million, four hundred fifteen thousand, nine hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1900 16347061 32694122 65388244 81735305 163470610 310594159 326941220 408676525 621188318 817353050 1242376636 1552970795 1634706100 3105941590 6211883180 7764853975 15529707950 31059415900