Base | Representation |
---|---|
bin | 11000011111111000… |
… | …01010011001111111 |
3 | 1020221121102122211212 |
4 | 30033330022121333 |
5 | 203413444101031 |
6 | 10013032035035 |
7 | 643632654323 |
oct | 141774123177 |
9 | 36847378755 |
10 | 13152331391 |
11 | 563a16a271 |
12 | 2670832a7b |
13 | 1317b08b14 |
14 | 8caa9d983 |
15 | 51e9e212b |
hex | 30ff0a67f |
13152331391 has 4 divisors (see below), whose sum is σ = 13175693112. Its totient is φ = 13128969672.
The previous prime is 13152331331. The next prime is 13152331397. The reversal of 13152331391 is 19313325131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19313325131 = 907 ⋅21293633.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13152331391 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13152331397) 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, 11680016 + ... + 11681141.
It is an arithmetic number, because the mean of its divisors is an integer number (3293923278).
Almost surely, 213152331391 is an apocalyptic number.
13152331391 is a deficient number, since it is larger than the sum of its proper divisors (23361721).
13152331391 is an equidigital number, since it uses as much as digits as its factorization.
13152331391 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23361720.
The product of its digits is 7290, while the sum is 32.
The spelling of 13152331391 in words is "thirteen billion, one hundred fifty-two million, three hundred thirty-one thousand, three hundred ninety-one".
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