Base | Representation |
---|---|
bin | 11100011010101100… |
… | …001010011111101000 |
3 | 2220202110202110000222 |
4 | 130122230022133220 |
5 | 444442203243013 |
6 | 22003421545212 |
7 | 2130062306144 |
oct | 343254123750 |
9 | 86673673028 |
10 | 30512556008 |
11 | 11a385a6a40 |
12 | 5ab6715208 |
13 | 2b5362528c |
14 | 169654c224 |
15 | bd8b22508 |
hex | 71ab0a7e8 |
30512556008 has 32 divisors (see below), whose sum is σ = 62679951360. Its totient is φ = 13809809280.
The previous prime is 30512556007. The next prime is 30512556047. The reversal of 30512556008 is 80065521503.
It is not an unprimeable number, because it can be changed into a prime (30512556007) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723560 + ... + 764567.
It is an arithmetic number, because the mean of its divisors is an integer number (1958748480).
Almost surely, 230512556008 is an apocalyptic number.
It is an amenable number.
30512556008 is an abundant number, since it is smaller than the sum of its proper divisors (32167395352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30512556008 is a wasteful number, since it uses less digits than its factorization.
30512556008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1488377 (or 1488373 counting only the distinct ones).
The product of its (nonzero) digits is 36000, while the sum is 35.
The spelling of 30512556008 in words is "thirty billion, five hundred twelve million, five hundred fifty-six thousand, eight".
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