Base | Representation |
---|---|
bin | 111101000111111110… |
… | …1111111101101110011 |
3 | 110112211001011001112120 |
4 | 1322033331333231303 |
5 | 4122312142200111 |
6 | 140145123525323 |
7 | 12324566045160 |
oct | 1721775775563 |
9 | 415731131476 |
10 | 131264412531 |
11 | 5073a37aa6a |
12 | 21534229843 |
13 | c4bbb2c525 |
14 | 64d33a5067 |
15 | 3633d74406 |
hex | 1e8ff7fb73 |
131264412531 has 8 divisors (see below), whose sum is σ = 200021961984. Its totient is φ = 75008235720.
The previous prime is 131264412511. The next prime is 131264412541. The reversal of 131264412531 is 135214462131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131264412531 - 211 = 131264410483 is a prime.
It is a super-2 number, since 2×1312644125312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 131264412492 and 131264412501.
It is not an unprimeable number, because it can be changed into a prime (131264412511) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125343135 + ... + 3125343176.
It is an arithmetic number, because the mean of its divisors is an integer number (25002745248).
Almost surely, 2131264412531 is an apocalyptic number.
131264412531 is a deficient number, since it is larger than the sum of its proper divisors (68757549453).
131264412531 is an equidigital number, since it uses as much as digits as its factorization.
131264412531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6250686321.
The product of its digits is 17280, while the sum is 33.
Adding to 131264412531 its reverse (135214462131), we get a palindrome (266478874662).
The spelling of 131264412531 in words is "one hundred thirty-one billion, two hundred sixty-four million, four hundred twelve thousand, five hundred thirty-one".
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