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113108729 = 19291031993
BaseRepresentation
bin1101011110111…
…10011011111001
321212211112000012
412233132123321
5212423434404
615120151305
72542260026
oct657363371
9255745005
10113108729
1158935298
1231a68535
131a583356
141104454d
159de3a6e
hex6bde6f9

113108729 has 16 divisors (see below), whose sum is σ = 124425600. Its totient is φ = 102404736.

The previous prime is 113108719. The next prime is 113108747. The reversal of 113108729 is 927801311.

It is a cyclic number.

It is not a de Polignac number, because 113108729 - 24 = 113108713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113108695 and 113108704.

It is not an unprimeable number, because it can be changed into a prime (113108719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55757 + ... + 57749.

It is an arithmetic number, because the mean of its divisors is an integer number (7776600).

Almost surely, 2113108729 is an apocalyptic number.

113108729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

113108729 is a deficient number, since it is larger than the sum of its proper divisors (11316871).

113108729 is a wasteful number, since it uses less digits than its factorization.

113108729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 113108729 is about 10635.2587650701. The cubic root of 113108729 is about 483.6138249310.

The spelling of 113108729 in words is "one hundred thirteen million, one hundred eight thousand, seven hundred twenty-nine".

Divisors: 1 19 29 103 551 1957 1993 2987 37867 56753 57797 205279 1098143 3900301 5953091 113108729