Base | Representation |
---|---|
bin | 11110110000011… |
… | …10001011111000 |
3 | 122222111011011110 |
4 | 33120032023320 |
5 | 1012022222200 |
6 | 41334000320 |
7 | 6252013221 |
oct | 1730161370 |
9 | 588434143 |
10 | 258007800 |
11 | 122703096 |
12 | 724a60a0 |
13 | 415b754b |
14 | 263a2248 |
15 | 179b6b50 |
hex | f60e2f8 |
258007800 has 48 divisors (see below), whose sum is σ = 799826040. Its totient is φ = 68801920.
The previous prime is 258007787. The next prime is 258007807. The reversal of 258007800 is 8700852.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258007807) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214407 + ... + 215606.
Almost surely, 2258007800 is an apocalyptic number.
258007800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
258007800 is an abundant number, since it is smaller than the sum of its proper divisors (541818240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
258007800 is a wasteful number, since it uses less digits than its factorization.
258007800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 430032 (or 430023 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 258007800 is about 16062.6212057684. The cubic root of 258007800 is about 636.6160914234.
The spelling of 258007800 in words is "two hundred fifty-eight million, seven thousand, eight hundred".
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