Base | Representation |
---|---|
bin | 1110000011010101010101… |
… | …11010100100101010101000 |
3 | 11001102002112012212120200021 |
4 | 13001222222322210222220 |
5 | 13022234431211134210 |
6 | 145415354330450224 |
7 | 6336341112666532 |
oct | 701525272445250 |
9 | 131362465776607 |
10 | 30900862208680 |
11 | 9933a89151002 |
12 | 3570964293974 |
13 | 1431c2871c5b9 |
14 | 78b877092852 |
15 | 388c07d69bda |
hex | 1c1aaaea4aa8 |
30900862208680 has 64 divisors (see below), whose sum is σ = 69843779913600. Its totient is φ = 12304038240000.
The previous prime is 30900862208653. The next prime is 30900862208683. The reversal of 30900862208680 is 8680226800903.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (30900862208683) 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, 48441805 + ... + 49075555.
It is an arithmetic number, because the mean of its divisors is an integer number (1091309061150).
Almost surely, 230900862208680 is an apocalyptic number.
It is an amenable number.
30900862208680 is an abundant number, since it is smaller than the sum of its proper divisors (38942917704920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30900862208680 is a wasteful number, since it uses less digits than its factorization.
30900862208680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 639314 (or 639310 counting only the distinct ones).
The product of its (nonzero) digits is 1990656, while the sum is 52.
The spelling of 30900862208680 in words is "thirty trillion, nine hundred billion, eight hundred sixty-two million, two hundred eight thousand, six hundred eighty".
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