Base | Representation |
---|---|
bin | 111101000110101110… |
… | …1011001100101001101 |
3 | 110112201002221012020112 |
4 | 1322031131121211031 |
5 | 4122220403011133 |
6 | 140141021325405 |
7 | 12323545154651 |
oct | 1721535314515 |
9 | 415632835215 |
10 | 131222313293 |
11 | 50718636205 |
12 | 21522106865 |
13 | c4b31ac336 |
14 | 64cb966a61 |
15 | 363030a648 |
hex | 1e8d75994d |
131222313293 has 2 divisors, whose sum is σ = 131222313294. Its totient is φ = 131222313292.
The previous prime is 131222313227. The next prime is 131222313323. The reversal of 131222313293 is 392313222131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 124339453924 + 6882859369 = 352618^2 + 82963^2 .
It is a cyclic number.
It is not a de Polignac number, because 131222313293 - 226 = 131155204429 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131222313193) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611156646 + 65611156647.
It is an arithmetic number, because the mean of its divisors is an integer number (65611156647).
Almost surely, 2131222313293 is an apocalyptic number.
It is an amenable number.
131222313293 is a deficient number, since it is larger than the sum of its proper divisors (1).
131222313293 is an equidigital number, since it uses as much as digits as its factorization.
131222313293 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 11664, while the sum is 32.
The spelling of 131222313293 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred ninety-three".
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