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13251415121 = 729463140989
BaseRepresentation
bin11000101011101100…
…01000110001010001
31021012111212122011122
430111312020301101
5204114330240441
610030531452025
7646245112220
oct142566106121
937174778148
1013251415121
11569009534a
122699a57015
1313324bb549
148d9cd2cb7
1552856534b
hex315d88c51

13251415121 has 16 divisors (see below), whose sum is σ = 15700646400. Its totient is φ = 10942924608.

The previous prime is 13251415103. The next prime is 13251415159. The reversal of 13251415121 is 12151415231.

It is not a de Polignac number, because 13251415121 - 218 = 13251152977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13251415921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23495 + ... + 164483.

It is an arithmetic number, because the mean of its divisors is an integer number (981290400).

Almost surely, 213251415121 is an apocalyptic number.

It is an amenable number.

13251415121 is a deficient number, since it is larger than the sum of its proper divisors (2449231279).

13251415121 is a wasteful number, since it uses less digits than its factorization.

13251415121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141488.

The product of its digits is 1200, while the sum is 26.

The spelling of 13251415121 in words is "thirteen billion, two hundred fifty-one million, four hundred fifteen thousand, one hundred twenty-one".

Divisors: 1 7 29 203 463 3241 13427 93989 140989 986923 4088681 28620767 65277907 456945349 1893059303 13251415121