Base | Representation |
---|---|
bin | 11100101010010010… |
… | …000110101110000001 |
3 | 2221102201000022121020 |
4 | 130222102012232001 |
5 | 1001011141112012 |
6 | 22045405020053 |
7 | 2136420021561 |
oct | 345222065601 |
9 | 87381008536 |
10 | 30774160257 |
11 | 120622360a5 |
12 | 5b6a254629 |
13 | 2b9589b7a9 |
14 | 16bd1a8da1 |
15 | c01a99a8c |
hex | 72a486b81 |
30774160257 has 64 divisors (see below), whose sum is σ = 46332518400. Its totient is φ = 18073635840.
The previous prime is 30774160171. The next prime is 30774160297. The reversal of 30774160257 is 75206147703.
It is not a de Polignac number, because 30774160257 - 27 = 30774160129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30774160297) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10469494 + ... + 10472432.
It is an arithmetic number, because the mean of its divisors is an integer number (723945600).
Almost surely, 230774160257 is an apocalyptic number.
30774160257 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
It is an amenable number.
30774160257 is a deficient number, since it is larger than the sum of its proper divisors (15558358143).
30774160257 is a wasteful number, since it uses less digits than its factorization.
30774160257 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3206.
The product of its (nonzero) digits is 246960, while the sum is 42.
The spelling of 30774160257 in words is "thirty billion, seven hundred seventy-four million, one hundred sixty thousand, two hundred fifty-seven".
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