Base | Representation |
---|---|
bin | 11100110110111110… |
… | …100110010100010100 |
3 | 2221222112210100102220 |
4 | 130312332212110110 |
5 | 1001430202304422 |
6 | 22122454102340 |
7 | 2144614301655 |
oct | 346676462424 |
9 | 87875710386 |
10 | 30987150612 |
11 | 12161490990 |
12 | 600964a9b0 |
13 | 2bcaa537a2 |
14 | 16dd5ad52c |
15 | c1561ce5c |
hex | 736fa6514 |
30987150612 has 48 divisors (see below), whose sum is σ = 79826729472. Its totient is φ = 9276909280.
The previous prime is 30987150589. The next prime is 30987150661. The reversal of 30987150612 is 21605178903.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403208 + ... + 1425119.
It is an arithmetic number, because the mean of its divisors is an integer number (1663056864).
Almost surely, 230987150612 is an apocalyptic number.
It is an amenable number.
30987150612 is an abundant number, since it is smaller than the sum of its proper divisors (48839578860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30987150612 is a wasteful number, since it uses less digits than its factorization.
30987150612 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2828428 (or 2828426 counting only the distinct ones).
The product of its (nonzero) digits is 90720, while the sum is 42.
The spelling of 30987150612 in words is "thirty billion, nine hundred eighty-seven million, one hundred fifty thousand, six hundred twelve".
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