Base | Representation |
---|---|
bin | 11000110010111001… |
… | …01101001101010010 |
3 | 1021100201121102111220 |
4 | 30121130231031102 |
5 | 204230313414430 |
6 | 10040531145510 |
7 | 650610631101 |
oct | 143134551522 |
9 | 37321542456 |
10 | 13311857490 |
11 | 5711218618 |
12 | 26b6145296 |
13 | 1341b91969 |
14 | 903d48038 |
15 | 52da04110 |
hex | 31972d352 |
13311857490 has 16 divisors (see below), whose sum is σ = 31948458048. Its totient is φ = 3549828656.
The previous prime is 13311857479. The next prime is 13311857509. The reversal of 13311857490 is 9475811331.
13311857490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 221864262 + ... + 221864321.
It is an arithmetic number, because the mean of its divisors is an integer number (1996778628).
Almost surely, 213311857490 is an apocalyptic number.
13311857490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13311857490 is an abundant number, since it is smaller than the sum of its proper divisors (18636600558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13311857490 is a wasteful number, since it uses less digits than its factorization.
13311857490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 443728593.
The product of its (nonzero) digits is 90720, while the sum is 42.
The spelling of 13311857490 in words is "thirteen billion, three hundred eleven million, eight hundred fifty-seven thousand, four hundred ninety".
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