Base | Representation |
---|---|
bin | 111101000111100111… |
… | …0101011111000100011 |
3 | 110112210011210222012020 |
4 | 1322033032223320203 |
5 | 4122301003314111 |
6 | 140144002032523 |
7 | 12324355452555 |
oct | 1721716537043 |
9 | 415704728166 |
10 | 131252010531 |
11 | 5073337a184 |
12 | 21530048743 |
13 | c4b93a9575 |
14 | 64d18974d5 |
15 | 3632c24906 |
hex | 1e8f3abe23 |
131252010531 has 16 divisors (see below), whose sum is σ = 177438483456. Its totient is φ = 86283959616.
The previous prime is 131252010529. The next prime is 131252010559. The reversal of 131252010531 is 135010252131.
It is not a de Polignac number, because 131252010531 - 21 = 131252010529 is a prime.
It is a super-2 number, since 2×1312520105312 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131252010031) 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, 984826 + ... + 1110128.
It is an arithmetic number, because the mean of its divisors is an integer number (11089905216).
Almost surely, 2131252010531 is an apocalyptic number.
131252010531 is a deficient number, since it is larger than the sum of its proper divisors (46186472925).
131252010531 is a wasteful number, since it uses less digits than its factorization.
131252010531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130162.
The product of its (nonzero) digits is 900, while the sum is 24.
Adding to 131252010531 its reverse (135010252131), we get a palindrome (266262262662).
The spelling of 131252010531 in words is "one hundred thirty-one billion, two hundred fifty-two million, ten thousand, five hundred thirty-one".
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