Base | Representation |
---|---|
bin | 11100110101001100… |
… | …011101101111101000 |
3 | 2221220110111021120002 |
4 | 130311030131233220 |
5 | 1001400022343310 |
6 | 22115504522132 |
7 | 2144102060006 |
oct | 346514355750 |
9 | 87813437502 |
10 | 30957231080 |
11 | 121466059a6 |
12 | 5bbb620348 |
13 | 2bc47a9319 |
14 | 16d9621a76 |
15 | c12bacda5 |
hex | 73531dbe8 |
30957231080 has 32 divisors (see below), whose sum is σ = 69814672200. Its totient is φ = 12354287616.
The previous prime is 30957231017. The next prime is 30957231143. The reversal of 30957231080 is 8013275903.
It is an interprime number because it is at equal distance from previous prime (30957231017) and next prime (30957231143).
It can be written as a sum of positive squares in 4 ways, for example, as 18537911716 + 12419319364 = 136154^2 + 111442^2 .
It is a super-2 number, since 2×309572310802 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876365 + ... + 911004.
Almost surely, 230957231080 is an apocalyptic number.
It is an amenable number.
30957231080 is an abundant number, since it is smaller than the sum of its proper divisors (38857441120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30957231080 is a wasteful number, since it uses less digits than its factorization.
30957231080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1787813 (or 1787809 counting only the distinct ones).
The product of its (nonzero) digits is 45360, while the sum is 38.
The spelling of 30957231080 in words is "thirty billion, nine hundred fifty-seven million, two hundred thirty-one thousand, eighty".
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