Base | Representation |
---|---|
bin | 11100001011011111… |
… | …010000100010101100 |
3 | 2220002200212000002102 |
4 | 130023133100202230 |
5 | 443431410432133 |
6 | 21522231314232 |
7 | 2120544426323 |
oct | 341337204254 |
9 | 86080760072 |
10 | 30257514668 |
11 | 1191763a677 |
12 | 5a4521b978 |
13 | 2b12839044 |
14 | 167071d0ba |
15 | bc15447e8 |
hex | 70b7d08ac |
30257514668 has 48 divisors (see below), whose sum is σ = 61582187520. Its totient is φ = 12902909184.
The previous prime is 30257514607. The next prime is 30257514673. The reversal of 30257514668 is 86641575203.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479396 + ... + 538827.
It is an arithmetic number, because the mean of its divisors is an integer number (1282962240).
Almost surely, 230257514668 is an apocalyptic number.
30257514668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
30257514668 is an abundant number, since it is smaller than the sum of its proper divisors (31324672852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30257514668 is a wasteful number, since it uses less digits than its factorization.
30257514668 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1018286 (or 1018284 counting only the distinct ones).
The product of its (nonzero) digits is 1209600, while the sum is 47.
The spelling of 30257514668 in words is "thirty billion, two hundred fifty-seven million, five hundred fourteen thousand, six hundred sixty-eight".
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