Base | Representation |
---|---|
bin | 11100011101010101… |
… | …010110101111001010 |
3 | 2220212120012210012111 |
4 | 130131111112233022 |
5 | 1000040032032430 |
6 | 22012044332534 |
7 | 2131141302523 |
oct | 343525265712 |
9 | 86776183174 |
10 | 30556908490 |
11 | 11a6063a689 |
12 | 5b0954414a |
13 | 2b5c883c54 |
14 | 169c3b584a |
15 | bdc983c2a |
hex | 71d556bca |
30556908490 has 64 divisors (see below), whose sum is σ = 56487974400. Its totient is φ = 11898192384.
The previous prime is 30556908469. The next prime is 30556908511. The reversal of 30556908490 is 9480965503.
It is an interprime number because it is at equal distance from previous prime (30556908469) and next prime (30556908511).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20062869 + ... + 20064391.
It is an arithmetic number, because the mean of its divisors is an integer number (882624600).
Almost surely, 230556908490 is an apocalyptic number.
30556908490 is a deficient number, since it is larger than the sum of its proper divisors (25931065910).
30556908490 is a wasteful number, since it uses less digits than its factorization.
30556908490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1951.
The product of its (nonzero) digits is 1166400, while the sum is 49.
The spelling of 30556908490 in words is "thirty billion, five hundred fifty-six million, nine hundred eight thousand, four hundred ninety".
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