Base | Representation |
---|---|
bin | 11110110001110… |
… | …10001111000110 |
3 | 122222211022200001 |
4 | 33120322033012 |
5 | 1012044010410 |
6 | 41341511514 |
7 | 6253364236 |
oct | 1730721706 |
9 | 588738601 |
10 | 258188230 |
11 | 122816703 |
12 | 7257259a |
13 | 4164b701 |
14 | 2640bcc6 |
15 | 17a0033a |
hex | f63a3c6 |
258188230 has 8 divisors (see below), whose sum is σ = 464738832. Its totient is φ = 103275288.
The previous prime is 258188209. The next prime is 258188233. The reversal of 258188230 is 32881852.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×2581882303 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 258188230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258188233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12909402 + ... + 12909421.
It is an arithmetic number, because the mean of its divisors is an integer number (58092354).
Almost surely, 2258188230 is an apocalyptic number.
258188230 is a deficient number, since it is larger than the sum of its proper divisors (206550602).
258188230 is a wasteful number, since it uses less digits than its factorization.
258188230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25818830.
The product of its (nonzero) digits is 30720, while the sum is 37.
The square root of 258188230 is about 16068.2366798601. The cubic root of 258188230 is about 636.7644562869.
The spelling of 258188230 in words is "two hundred fifty-eight million, one hundred eighty-eight thousand, two hundred thirty".
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