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258254887 = 1110322213
BaseRepresentation
bin11110110010010…
…10100000100111
3122222221201002211
433121022200213
51012103124022
641343144251
76254062462
oct1731124047
9588851084
10258254887
111228617a0
12725a5087
1341672b57
14264282d9
1517a14e77
hexf64a827

258254887 has 12 divisors (see below), whose sum is σ = 284622984. Its totient is φ = 232392720.

The previous prime is 258254869. The next prime is 258254891. The reversal of 258254887 is 788452852.

258254887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258254887 - 227 = 124037159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258254887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258254807) 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, 115593 + ... + 117805.

It is an arithmetic number, because the mean of its divisors is an integer number (23718582).

Almost surely, 2258254887 is an apocalyptic number.

258254887 is a deficient number, since it is larger than the sum of its proper divisors (26368097).

258254887 is a wasteful number, since it uses less digits than its factorization.

258254887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430 (or 2327 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 49.

The square root of 258254887 is about 16070.3107312833. The cubic root of 258254887 is about 636.8192498461.

The spelling of 258254887 in words is "two hundred fifty-eight million, two hundred fifty-four thousand, eight hundred eighty-seven".

Divisors: 1 11 103 1133 2213 10609 24343 116699 227939 2507329 23477717 258254887