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118107980 = 2255905399
BaseRepresentation
bin1110000101000…
…10111101001100
322020020111200122
413002202331030
5220213423410
615415244112
72632621064
oct702427514
9266214618
10118107980
116073a301
1233679638
131b6139a3
14119863a4
15a57ee55
hex70a2f4c

118107980 has 12 divisors (see below), whose sum is σ = 248026800. Its totient is φ = 47243184.

The previous prime is 118107943. The next prime is 118107989. The reversal of 118107980 is 89701811.

It is a self number, because there is not a number n which added to its sum of digits gives 118107980.

It is not an unprimeable number, because it can be changed into a prime (118107989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952680 + ... + 2952719.

It is an arithmetic number, because the mean of its divisors is an integer number (20668900).

Almost surely, 2118107980 is an apocalyptic number.

118107980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118107980 is an abundant number, since it is smaller than the sum of its proper divisors (129918820).

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

118107980 is a wasteful number, since it uses less digits than its factorization.

118107980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905408 (or 5905406 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 118107980 is about 10867.7495370477. The cubic root of 118107980 is about 490.6363798732.

The spelling of 118107980 in words is "one hundred eighteen million, one hundred seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 5905399 11810798 23621596 29526995 59053990 118107980