Base | Representation |
---|---|
bin | 11110110010001… |
… | …00101000101110 |
3 | 122222220111002211 |
4 | 33121010220232 |
5 | 1012101341310 |
6 | 41342441034 |
7 | 6253632364 |
oct | 1731045056 |
9 | 588814084 |
10 | 258230830 |
11 | 122845710 |
12 | 7259317a |
13 | 41664c10 |
14 | 2641d634 |
15 | 17a0cc8a |
hex | f644a2e |
258230830 has 64 divisors (see below), whose sum is σ = 552484800. Its totient is φ = 85662720.
The previous prime is 258230813. The next prime is 258230879. The reversal of 258230830 is 38032852.
258230830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 258230792 and 258230801.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126256 + ... + 128284.
It is an arithmetic number, because the mean of its divisors is an integer number (8632575).
Almost surely, 2258230830 is an apocalyptic number.
258230830 is an abundant number, since it is smaller than the sum of its proper divisors (294253970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
258230830 is a wasteful number, since it uses less digits than its factorization.
258230830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2149.
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 258230830 is about 16069.5622217906. The cubic root of 258230830 is about 636.7994755363.
The spelling of 258230830 in words is "two hundred fifty-eight million, two hundred thirty thousand, eight hundred thirty".
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