Base | Representation |
---|---|
bin | 1101011101011111110… |
… | …1010001010111101100 |
3 | 211002220122202211220012 |
4 | 3113113331101113230 |
5 | 12242103121230220 |
6 | 254123203512352 |
7 | 22464515136155 |
oct | 3272775212754 |
9 | 732818684805 |
10 | 231256430060 |
11 | 8a091253787 |
12 | 3899b3886b8 |
13 | 18a65aa57c6 |
14 | b29b34892c |
15 | 6037533ac5 |
hex | 35d7f515ec |
231256430060 has 24 divisors (see below), whose sum is σ = 489345672816. Its totient is φ = 91796444480.
The previous prime is 231256430047. The next prime is 231256430099. The reversal of 231256430060 is 60034652132.
It is a junction number, because it is equal to n+sod(n) for n = 231256429999 and 231256430026.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44130287 + ... + 44135526.
It is an arithmetic number, because the mean of its divisors is an integer number (20389403034).
Almost surely, 2231256430060 is an apocalyptic number.
231256430060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
231256430060 is an abundant number, since it is smaller than the sum of its proper divisors (258089242756).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231256430060 is a wasteful number, since it uses less digits than its factorization.
231256430060 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88265953 (or 88265951 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 32.
The spelling of 231256430060 in words is "two hundred thirty-one billion, two hundred fifty-six million, four hundred thirty thousand, sixty".
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