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13107169 = 19689851
BaseRepresentation
bin110001111111…
…111111100001
3220122220122201
4301333333201
511323412134
61144533201
7216260215
oct61777741
926586581
1013107169
117442679
124481201
13293bc2a
141a52945
15123d914
hexc7ffe1

13107169 has 4 divisors (see below), whose sum is σ = 13797040. Its totient is φ = 12417300.

The previous prime is 13107163. The next prime is 13107173. The reversal of 13107169 is 96170131.

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 13107169 - 23 = 13107161 is a prime.

It is a super-2 number, since 2×131071692 = 343595758389122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13107161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344907 + ... + 344944.

It is an arithmetic number, because the mean of its divisors is an integer number (3449260).

Almost surely, 213107169 is an apocalyptic number.

13107169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13107169 is a deficient number, since it is larger than the sum of its proper divisors (689871).

13107169 is an equidigital number, since it uses as much as digits as its factorization.

13107169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689870.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 13107169 is about 3620.3824383620. The cubic root of 13107169 is about 235.7778300323. Note that the first 3 decimals are identical.

The spelling of 13107169 in words is "thirteen million, one hundred seven thousand, one hundred sixty-nine".

Divisors: 1 19 689851 13107169