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113110909 = 313648739
BaseRepresentation
bin1101011110111…
…10111101111101
321212211121222221
412233132331331
5212424022114
615120205341
72542266262
oct657367575
9255747887
10113110909
115893699a
1231a69851
131a584342
1411045269
159de4524
hex6bdef7d

113110909 has 4 divisors (see below), whose sum is σ = 116759680. Its totient is φ = 109462140.

The previous prime is 113110903. The next prime is 113110913. The reversal of 113110909 is 909011311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113110909 - 29 = 113110397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113110903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824339 + ... + 1824400.

It is an arithmetic number, because the mean of its divisors is an integer number (29189920).

Almost surely, 2113110909 is an apocalyptic number.

It is an amenable number.

113110909 is a deficient number, since it is larger than the sum of its proper divisors (3648771).

113110909 is an equidigital number, since it uses as much as digits as its factorization.

113110909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648770.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 113110909 is about 10635.3612538550. The cubic root of 113110909 is about 483.6169318865.

The spelling of 113110909 in words is "one hundred thirteen million, one hundred ten thousand, nine hundred nine".

Divisors: 1 31 3648739 113110909