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109124113 = 715589159
BaseRepresentation
bin1101000000100…
…01101000010001
321121100002010211
412200101220101
5210413432423
614454524121
72463353050
oct640215021
9247302124
10109124113
115666361a
1230666641
13197b97a7
14106c8397
1598a810d
hex6811a11

109124113 has 4 divisors (see below), whose sum is σ = 124713280. Its totient is φ = 93534948.

The previous prime is 109124111. The next prime is 109124131. The reversal of 109124113 is 311421901.

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 109124113 - 21 = 109124111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109124111) 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, 7794573 + ... + 7794586.

It is an arithmetic number, because the mean of its divisors is an integer number (31178320).

Almost surely, 2109124113 is an apocalyptic number.

It is an amenable number.

109124113 is a deficient number, since it is larger than the sum of its proper divisors (15589167).

109124113 is an equidigital number, since it uses as much as digits as its factorization.

109124113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15589166.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 109124113 is about 10446.2487525427. The cubic root of 109124113 is about 477.8668551278.

The spelling of 109124113 in words is "one hundred nine million, one hundred twenty-four thousand, one hundred thirteen".

Divisors: 1 7 15589159 109124113