Base | Representation |
---|---|
bin | 11100100101000101… |
… | …000011011101011011 |
3 | 2221012121201122111110 |
4 | 130211011003131123 |
5 | 1000321313243310 |
6 | 22033005431403 |
7 | 2134306642413 |
oct | 344505033533 |
9 | 87177648443 |
10 | 30686852955 |
11 | 12017a23900 |
12 | 5b44b6b563 |
13 | 2b80780375 |
14 | 16b175d643 |
15 | be90a0d20 |
hex | 72514375b |
30686852955 has 48 divisors (see below), whose sum is σ = 55116698112. Its totient is φ = 14561870400.
The previous prime is 30686852923. The next prime is 30686852957. The reversal of 30686852955 is 55925868603.
It is not a de Polignac number, because 30686852955 - 25 = 30686852923 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30686852895 and 30686852904.
It is not an unprimeable number, because it can be changed into a prime (30686852957) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94561 + ... + 265170.
It is an arithmetic number, because the mean of its divisors is an integer number (1148264544).
Almost surely, 230686852955 is an apocalyptic number.
30686852955 is a deficient number, since it is larger than the sum of its proper divisors (24429845157).
30686852955 is a wasteful number, since it uses less digits than its factorization.
30686852955 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 359808 (or 359797 counting only the distinct ones).
The product of its (nonzero) digits is 15552000, while the sum is 57.
The spelling of 30686852955 in words is "thirty billion, six hundred eighty-six million, eight hundred fifty-two thousand, nine hundred fifty-five".
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