Base | Representation |
---|---|
bin | 11110110100001… |
… | …10011010010101 |
3 | 200000102011200011 |
4 | 33122012122111 |
5 | 1012134001440 |
6 | 41352320221 |
7 | 6256134013 |
oct | 1732063225 |
9 | 600364604 |
10 | 258500245 |
11 | 122a0a073 |
12 | 726a3071 |
13 | 4172a733 |
14 | 2648d8b3 |
15 | 17a629ea |
hex | f686695 |
258500245 has 16 divisors (see below), whose sum is σ = 316661760. Its totient is φ = 202535424.
The previous prime is 258500237. The next prime is 258500257. The reversal of 258500245 is 542005852.
It is a cyclic number.
It is not a de Polignac number, because 258500245 - 23 = 258500237 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47589 + ... + 52741.
It is an arithmetic number, because the mean of its divisors is an integer number (19791360).
Almost surely, 2258500245 is an apocalyptic number.
It is an amenable number.
258500245 is a deficient number, since it is larger than the sum of its proper divisors (58161515).
258500245 is a wasteful number, since it uses less digits than its factorization.
258500245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5364.
The product of its (nonzero) digits is 16000, while the sum is 31.
The square root of 258500245 is about 16077.9428099493. The cubic root of 258500245 is about 637.0208584758.
The spelling of 258500245 in words is "two hundred fifty-eight million, five hundred thousand, two hundred forty-five".
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