Base | Representation |
---|---|
bin | 110010001011… |
… | …001101101011 |
3 | 220202020201000 |
4 | 302023031223 |
5 | 11331400011 |
6 | 1145530043 |
7 | 216541215 |
oct | 62131553 |
9 | 26666630 |
10 | 13153131 |
11 | 7474162 |
12 | 44a3923 |
13 | 2956b24 |
14 | 1a655b5 |
15 | 124c356 |
hex | c8b36b |
13153131 has 16 divisors (see below), whose sum is σ = 19542400. Its totient is φ = 8743464.
The previous prime is 13153109. The next prime is 13153159. The reversal of 13153131 is 13135131.
13153131 is a `hidden beast` number, since 131 + 531 + 3 + 1 = 666.
It is not a de Polignac number, because 13153131 - 213 = 13144939 is a prime.
It is a super-2 number, since 2×131531312 = 346009710206322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13153181) 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 15 ways as a sum of consecutive naturals, for example, 16320 + ... + 17106.
It is an arithmetic number, because the mean of its divisors is an integer number (1221400).
Almost surely, 213153131 is an apocalyptic number.
13153131 is a deficient number, since it is larger than the sum of its proper divisors (6389269).
13153131 is an equidigital number, since it uses as much as digits as its factorization.
13153131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1415 (or 1409 counting only the distinct ones).
The product of its digits is 135, while the sum is 18.
The square root of 13153131 is about 3626.7245552978. The cubic root of 13153131 is about 236.0531037734.
Adding to 13153131 its reverse (13135131), we get a palindrome (26288262).
The spelling of 13153131 in words is "thirteen million, one hundred fifty-three thousand, one hundred thirty-one".
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