Base | Representation |
---|---|
bin | 11110110000101… |
… | …10001100000100 |
3 | 122222112211010112 |
4 | 33120112030010 |
5 | 1012024244310 |
6 | 41334412152 |
7 | 6252210620 |
oct | 1730261404 |
9 | 588484115 |
10 | 258040580 |
11 | 122725786 |
12 | 72501058 |
13 | 415c9445 |
14 | 263b0180 |
15 | 179c1705 |
hex | f616304 |
258040580 has 24 divisors (see below), whose sum is σ = 619297728. Its totient is φ = 88471008.
The previous prime is 258040543. The next prime is 258040589. The reversal of 258040580 is 85040852.
It is not an unprimeable number, because it can be changed into a prime (258040589) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921434 + ... + 921713.
It is an arithmetic number, because the mean of its divisors is an integer number (25804072).
Almost surely, 2258040580 is an apocalyptic number.
258040580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
258040580 is an abundant number, since it is smaller than the sum of its proper divisors (361257148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
258040580 is a wasteful number, since it uses less digits than its factorization.
258040580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1843163 (or 1843161 counting only the distinct ones).
The product of its (nonzero) digits is 12800, while the sum is 32.
The square root of 258040580 is about 16063.6415547658. The cubic root of 258040580 is about 636.6430510628.
The spelling of 258040580 in words is "two hundred fifty-eight million, forty thousand, five hundred eighty".
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