Base | Representation |
---|---|
bin | 1011101010011101… |
… | …0101110011001001 |
3 | 22002012021221012100 |
4 | 2322213111303021 |
5 | 22403001000311 |
6 | 1234401304013 |
7 | 140404666455 |
oct | 27247256311 |
9 | 8065257170 |
10 | 3130875081 |
11 | 136732a874 |
12 | 734635009 |
13 | 3ab848409 |
14 | 219b53665 |
15 | 134ce6a56 |
hex | ba9d5cc9 |
3130875081 has 24 divisors (see below), whose sum is σ = 4838450240. Its totient is φ = 1944972000.
The previous prime is 3130875079. The next prime is 3130875089. The reversal of 3130875081 is 1805780313.
It is not a de Polignac number, because 3130875081 - 21 = 3130875079 is a prime.
It is a super-2 number, since 2×31308750812 = 19604757545653513122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3130875089) 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, 139645 + ... + 160506.
Almost surely, 23130875081 is an apocalyptic number.
It is an amenable number.
3130875081 is a deficient number, since it is larger than the sum of its proper divisors (1707575159).
3130875081 is a wasteful number, since it uses less digits than its factorization.
3130875081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 300237 (or 300234 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 36.
The square root of 3130875081 is about 55954.2230845894. The cubic root of 3130875081 is about 1462.9245003988.
The spelling of 3130875081 in words is "three billion, one hundred thirty million, eight hundred seventy-five thousand, eighty-one".
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