Base | Representation |
---|---|
bin | 11110110001011… |
… | …00001110011101 |
3 | 122222201101221200 |
4 | 33120230032131 |
5 | 1012040141340 |
6 | 41340350113 |
7 | 6253035030 |
oct | 1730541635 |
9 | 588641850 |
10 | 258130845 |
11 | 122787585 |
12 | 72545339 |
13 | 4162b55b |
14 | 263d5017 |
15 | 179dd330 |
hex | f62c39d |
258130845 has 24 divisors (see below), whose sum is σ = 511345536. Its totient is φ = 118002528.
The previous prime is 258130843. The next prime is 258130853. The reversal of 258130845 is 548031852.
It is a happy number.
258130845 is a `hidden beast` number, since 2 + 581 + 30 + 8 + 45 = 666.
It is not a de Polignac number, because 258130845 - 21 = 258130843 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258130843) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409417 + ... + 410046.
It is an arithmetic number, because the mean of its divisors is an integer number (21306064).
Almost surely, 2258130845 is an apocalyptic number.
It is an amenable number.
258130845 is a deficient number, since it is larger than the sum of its proper divisors (253214691).
258130845 is a wasteful number, since it uses less digits than its factorization.
258130845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 819481 (or 819478 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 36.
The square root of 258130845 is about 16066.4509148723. The cubic root of 258130845 is about 636.7172769662.
The spelling of 258130845 in words is "two hundred fifty-eight million, one hundred thirty thousand, eight hundred forty-five".
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