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87906869096 = 2315172770587
BaseRepresentation
bin101000111011110101…
…0000101111101101000
322101220101021122022112
41101313222011331220
52420013124302341
6104214525141452
76231262026044
oct1216752057550
9271811248275
1087906869096
1134310154942
12150539ba888
13839c29ab97
14437cd1d024
15244771eaeb
hex1477a85f68

87906869096 has 16 divisors (see below), whose sum is σ = 165916940640. Its totient is φ = 43662351600.

The previous prime is 87906869087. The next prime is 87906869119. The reversal of 87906869096 is 69096860978.

It is a super-2 number, since 2×879068690962 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36384086 + ... + 36386501.

It is an arithmetic number, because the mean of its divisors is an integer number (10369808790).

Almost surely, 287906869096 is an apocalyptic number.

It is an amenable number.

87906869096 is a deficient number, since it is larger than the sum of its proper divisors (78010071544).

87906869096 is a wasteful number, since it uses less digits than its factorization.

87906869096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72770744 (or 72770740 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 68.

The spelling of 87906869096 in words is "eighty-seven billion, nine hundred six million, eight hundred sixty-nine thousand, ninety-six".

Divisors: 1 2 4 8 151 302 604 1208 72770587 145541174 291082348 582164696 10988358637 21976717274 43953434548 87906869096