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113108913 = 334189219
BaseRepresentation
bin1101011110111…
…10011110110001
321212211112021000
412233132132301
5212423441123
615120152213
72542260411
oct657363661
9255745230
10113108913
1158935445
1231a68669
131a583468
1411044641
159de3b43
hex6bde7b1

113108913 has 8 divisors (see below), whose sum is σ = 167568800. Its totient is φ = 75405924.

The previous prime is 113108911. The next prime is 113108953. The reversal of 113108913 is 319801311.

It is a happy number.

It is not a de Polignac number, because 113108913 - 21 = 113108911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4189219 = 113108913 / (1 + 1 + 3 + 1 + 0 + 8 + 9 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113108911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2094583 + ... + 2094636.

It is an arithmetic number, because the mean of its divisors is an integer number (20946100).

Almost surely, 2113108913 is an apocalyptic number.

It is an amenable number.

113108913 is a deficient number, since it is larger than the sum of its proper divisors (54459887).

113108913 is an equidigital number, since it uses as much as digits as its factorization.

113108913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189228 (or 4189222 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 113108913 is about 10635.2674155378. The cubic root of 113108913 is about 483.6140871710.

The spelling of 113108913 in words is "one hundred thirteen million, one hundred eight thousand, nine hundred thirteen".

Divisors: 1 3 9 27 4189219 12567657 37702971 113108913