Base | Representation |
---|---|
bin | 11011100011010… |
… | …00100101100100 |
3 | 121002212212022211 |
4 | 31301220211210 |
5 | 433131140413 |
6 | 34533333204 |
7 | 5504305660 |
oct | 1561504544 |
9 | 532785284 |
10 | 231115108 |
11 | 109505224 |
12 | 65497204 |
13 | 38b5ca03 |
14 | 229a18a0 |
15 | 1545383d |
hex | dc68964 |
231115108 has 48 divisors (see below), whose sum is σ = 471138304. Its totient is φ = 97161120.
The previous prime is 231115097. The next prime is 231115133. The reversal of 231115108 is 801511132.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365953 + ... + 366583.
Almost surely, 2231115108 is an apocalyptic number.
231115108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
231115108 is an abundant number, since it is smaller than the sum of its proper divisors (240023196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231115108 is a wasteful number, since it uses less digits than its factorization.
231115108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 872 (or 870 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 22.
The square root of 231115108 is about 15202.4704571329. The cubic root of 231115108 is about 613.6811431747.
The spelling of 231115108 in words is "two hundred thirty-one million, one hundred fifteen thousand, one hundred eight".
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