Base | Representation |
---|---|
bin | 111101001101100010… |
… | …0101110010101110111 |
3 | 110120022000201202020012 |
4 | 1322123010232111313 |
5 | 4123202341211001 |
6 | 140215421130435 |
7 | 12332320506332 |
oct | 1723304562567 |
9 | 416260652205 |
10 | 131450725751 |
11 | 50825564934 |
12 | 215866b9a1b |
13 | c51b603b37 |
14 | 6510023619 |
15 | 36453c82bb |
hex | 1e9b12e577 |
131450725751 has 4 divisors (see below), whose sum is σ = 131915216232. Its totient is φ = 130986235272.
The previous prime is 131450725739. The next prime is 131450725759. The reversal of 131450725751 is 157527054131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157527054131 = 2713 ⋅58063787.
It is a cyclic number.
It is not a de Polignac number, because 131450725751 - 26 = 131450725687 is a prime.
It is a super-2 number, since 2×1314507257512 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131450725699 and 131450725708.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131450725759) 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, 232244816 + ... + 232245381.
It is an arithmetic number, because the mean of its divisors is an integer number (32978804058).
Almost surely, 2131450725751 is an apocalyptic number.
131450725751 is a deficient number, since it is larger than the sum of its proper divisors (464490481).
131450725751 is an equidigital number, since it uses as much as digits as its factorization.
131450725751 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 464490480.
The product of its (nonzero) digits is 147000, while the sum is 41.
Adding to 131450725751 its reverse (157527054131), we get a palindrome (288977779882).
The spelling of 131450725751 in words is "one hundred thirty-one billion, four hundred fifty million, seven hundred twenty-five thousand, seven hundred fifty-one".
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