Base | Representation |
---|---|
bin | 100111001000100… |
… | …1010111100100011 |
3 | 10101111212121200002 |
4 | 1032101022330203 |
5 | 10142124433011 |
6 | 334144450215 |
7 | 44353241144 |
oct | 11621127443 |
9 | 3344777602 |
10 | 1313124131 |
11 | 614251660 |
12 | 30791996b |
13 | 17c081837 |
14 | c6579acb |
15 | 7a433c3b |
hex | 4e44af23 |
1313124131 has 16 divisors (see below), whose sum is σ = 1467797760. Its totient is φ = 1164589920.
The previous prime is 1313124091. The next prime is 1313124151. The reversal of 1313124131 is 1314213131.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1313124131 is a prime.
It is a super-2 number, since 2×13131241312 = 3448589966829010322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1313124151) 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, 98066 + ... + 110648.
It is an arithmetic number, because the mean of its divisors is an integer number (91737360).
Almost surely, 21313124131 is an apocalyptic number.
1313124131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1313124131 is a deficient number, since it is larger than the sum of its proper divisors (154673629).
1313124131 is a wasteful number, since it uses less digits than its factorization.
1313124131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12826.
The product of its digits is 216, while the sum is 20.
The square root of 1313124131 is about 36237.0546678397. The cubic root of 1313124131 is about 1095.0533062739.
Adding to 1313124131 its reverse (1314213131), we get a palindrome (2627337262).
The spelling of 1313124131 in words is "one billion, three hundred thirteen million, one hundred twenty-four thousand, one hundred thirty-one".
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