Base | Representation |
---|---|
bin | 1111100111101… |
… | …01110000111011 |
3 | 100010120000110202 |
4 | 13303311300323 |
5 | 232020430300 |
6 | 21000232415 |
7 | 3150510611 |
oct | 763656073 |
9 | 303500422 |
10 | 131030075 |
11 | 67a65920 |
12 | 37a6b70b |
13 | 211b95b7 |
14 | 1358b6b1 |
15 | b783ad5 |
hex | 7cf5c3b |
131030075 has 24 divisors (see below), whose sum is σ = 178113600. Its totient is φ = 94829600.
The previous prime is 131030071. The next prime is 131030083. The reversal of 131030075 is 570030131.
It is a happy number.
It is not a de Polignac number, because 131030075 - 22 = 131030071 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131030071) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61376 + ... + 63474.
It is an arithmetic number, because the mean of its divisors is an integer number (7421400).
Almost surely, 2131030075 is an apocalyptic number.
131030075 is a deficient number, since it is larger than the sum of its proper divisors (47083525).
131030075 is a wasteful number, since it uses less digits than its factorization.
131030075 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2347 (or 2342 counting only the distinct ones).
The product of its (nonzero) digits is 315, while the sum is 20.
The square root of 131030075 is about 11446.8368993360. The cubic root of 131030075 is about 507.9141708696.
The spelling of 131030075 in words is "one hundred thirty-one million, thirty thousand, seventy-five".
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