Base | Representation |
---|---|
bin | 11011011010110… |
… | …11011001101000 |
3 | 121000210211212020 |
4 | 31231123121220 |
5 | 432340400040 |
6 | 34453544440 |
7 | 5462034303 |
oct | 1555333150 |
9 | 530724766 |
10 | 230012520 |
11 | 1089218a1 |
12 | 65045120 |
13 | 38864baa |
14 | 22795b3a |
15 | 152d6cd0 |
hex | db5b668 |
230012520 has 64 divisors (see below), whose sum is σ = 691035840. Its totient is φ = 61248000.
The previous prime is 230012513. The next prime is 230012539. The reversal of 230012520 is 25210032.
230012520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 230012520.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157795 + ... + 159245.
It is an arithmetic number, because the mean of its divisors is an integer number (10797435).
Almost surely, 2230012520 is an apocalyptic number.
230012520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
230012520 is an abundant number, since it is smaller than the sum of its proper divisors (461023320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230012520 is a wasteful number, since it uses less digits than its factorization.
230012520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2786 (or 2782 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 230012520 is about 15166.1636546623. The cubic root of 230012520 is about 612.7036845834.
Adding to 230012520 its reverse (25210032), we get a palindrome (255222552).
The spelling of 230012520 in words is "two hundred thirty million, twelve thousand, five hundred twenty".
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