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13091051 = 47713923
BaseRepresentation
bin110001111100…
…000011101011
3220122002112202
4301330003223
511322403201
61144330415
7216162221
oct61740353
926562482
1013091051
117431556
124473a0b
1329347ac
141a4ab11
151238c6b
hexc7c0eb

13091051 has 8 divisors (see below), whose sum is σ = 13561344. Its totient is φ = 12628840.

The previous prime is 13091041. The next prime is 13091059. The reversal of 13091051 is 15019031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13091051 - 210 = 13090027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13091059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (1695168).

Almost surely, 213091051 is an apocalyptic number.

13091051 is a deficient number, since it is larger than the sum of its proper divisors (470293).

13091051 is an equidigital number, since it uses as much as digits as its factorization.

13091051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 13091051 is about 3618.1557456804. The cubic root of 13091051 is about 235.6811443720.

The spelling of 13091051 in words is "thirteen million, ninety-one thousand, fifty-one".

Divisors: 1 47 71 3337 3923 184381 278533 13091051