Base | Representation |
---|---|
bin | 11110110011111… |
… | …11100100111010 |
3 | 200000100202021022 |
4 | 33121333210322 |
5 | 1012132103000 |
6 | 41351542442 |
7 | 6255656261 |
oct | 1731774472 |
9 | 600322238 |
10 | 258472250 |
11 | 1229a0033 |
12 | 7268aa22 |
13 | 4171aa7a |
14 | 264835d8 |
15 | 17a59585 |
hex | f67f93a |
258472250 has 64 divisors (see below), whose sum is σ = 521243424. Its totient is φ = 95616000.
The previous prime is 258472213. The next prime is 258472261. The reversal of 258472250 is 52274852.
It can be written as a sum of positive squares in 16 ways, for example, as 7027801 + 251444449 = 2651^2 + 15857^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 258472250.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258752 + ... + 259748.
Almost surely, 2258472250 is an apocalyptic number.
258472250 is an abundant number, since it is smaller than the sum of its proper divisors (262771174).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
258472250 is a wasteful number, since it uses less digits than its factorization.
258472250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1092 (or 1082 counting only the distinct ones).
The product of its (nonzero) digits is 44800, while the sum is 35.
The square root of 258472250 is about 16077.0721837031. The cubic root of 258472250 is about 636.9978616662.
The spelling of 258472250 in words is "two hundred fifty-eight million, four hundred seventy-two thousand, two hundred fifty".
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