Base | Representation |
---|---|
bin | 11100110100000111… |
… | …100000100000000000 |
3 | 2221212012110220001121 |
4 | 130310013200200000 |
5 | 1001330410420212 |
6 | 22114021242024 |
7 | 2143462321264 |
oct | 346407404000 |
9 | 87765426047 |
10 | 30939154432 |
11 | 1213738971a |
12 | 5bb5563314 |
13 | 2bc0b1a494 |
14 | 16d70780a4 |
15 | c112dbd07 |
hex | 7341e0800 |
30939154432 has 96 divisors (see below), whose sum is σ = 63526226400. Its totient is φ = 15058960384.
The previous prime is 30939154427. The next prime is 30939154447. The reversal of 30939154432 is 23445193903.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12927828 + ... + 12930220.
It is an arithmetic number, because the mean of its divisors is an integer number (661731525).
Almost surely, 230939154432 is an apocalyptic number.
30939154432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30939154432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31763113200).
30939154432 is an abundant number, since it is smaller than the sum of its proper divisors (32587071968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30939154432 is a wasteful number, since it uses less digits than its factorization.
30939154432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2581 (or 2561 counting only the distinct ones).
The product of its (nonzero) digits is 349920, while the sum is 43.
The spelling of 30939154432 in words is "thirty billion, nine hundred thirty-nine million, one hundred fifty-four thousand, four hundred thirty-two".
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