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118617866980 = 2255930893349
BaseRepresentation
bin110111001111000101…
…1010000001011100100
3102100011200102222102121
41232132023100023210
53420412133220410
6130254200315324
711366314143034
oct1563613201344
9370150388377
10118617866980
114633a76a128
121aba4a72b44
13b254a53192
145a539658c4
15314398e9da
hex1b9e2d02e4

118617866980 has 12 divisors (see below), whose sum is σ = 249097520700. Its totient is φ = 47447146784.

The previous prime is 118617866959. The next prime is 118617866999. The reversal of 118617866980 is 89668716811.

118617866980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60720845056 + 57897021924 = 246416^2 + 240618^2 .

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, 2965446655 + ... + 2965446694.

It is an arithmetic number, because the mean of its divisors is an integer number (20758126725).

Almost surely, 2118617866980 is an apocalyptic number.

118617866980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118617866980 is an abundant number, since it is smaller than the sum of its proper divisors (130479653720).

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

118617866980 is a wasteful number, since it uses less digits than its factorization.

118617866980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930893358 (or 5930893356 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 61.

The spelling of 118617866980 in words is "one hundred eighteen billion, six hundred seventeen million, eight hundred sixty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 5930893349 11861786698 23723573396 29654466745 59308933490 118617866980