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87431301192 = 2335636470641
BaseRepresentation
bin101000101101101001…
…1111100100001001000
322100200020102021210110
41101123103330201020
52413024403114232
6104055420114320
76213425540514
oct1213323744110
9270606367713
1087431301192
1134096765714
1214b406959a0
1383248bb661
144335ac7144
15241aad0acc
hex145b4fc848

87431301192 has 32 divisors (see below), whose sum is σ = 218966525280. Its totient is φ = 29091997440.

The previous prime is 87431301187. The next prime is 87431301239. The reversal of 87431301192 is 29110313478.

It is a self number, because there is not a number n which added to its sum of digits gives 87431301192.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3221809 + ... + 3248832.

It is an arithmetic number, because the mean of its divisors is an integer number (6842703915).

Almost surely, 287431301192 is an apocalyptic number.

It is an amenable number.

87431301192 is an abundant number, since it is smaller than the sum of its proper divisors (131535224088).

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

87431301192 is a wasteful number, since it uses less digits than its factorization.

87431301192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6471213 (or 6471209 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 87431301192 in words is "eighty-seven billion, four hundred thirty-one million, three hundred one thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 563 1126 1689 2252 3378 4504 6756 13512 6470641 12941282 19411923 25882564 38823846 51765128 77647692 155295384 3642970883 7285941766 10928912649 14571883532 21857825298 29143767064 43715650596 87431301192