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258094938 = 231131512521
BaseRepresentation
bin11110110001000…
…11011101011010
3122222122120200210
433120203131122
51012033014223
641335511550
76252525243
oct1730433532
9588576623
10258094938
11122762602
12725285b6
13416180ca
14263c5cca
15179d2893
hexf62375a

258094938 has 32 divisors (see below), whose sum is σ = 524414592. Its totient is φ = 84672000.

The previous prime is 258094919. The next prime is 258094939. The reversal of 258094938 is 839490852.

It is a super-2 number, since 2×2580949382 = 133225994042447688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258094939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101118 + ... + 103638.

It is an arithmetic number, because the mean of its divisors is an integer number (16387956).

Almost surely, 2258094938 is an apocalyptic number.

258094938 is an abundant number, since it is smaller than the sum of its proper divisors (266319654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258094938 is a wasteful number, since it uses less digits than its factorization.

258094938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 258094938 is about 16065.3334232440. Note that the first 3 decimals coincide. The cubic root of 258094938 is about 636.6877523177.

The spelling of 258094938 in words is "two hundred fifty-eight million, ninety-four thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 113 151 226 302 339 453 678 906 2521 5042 7563 15126 17063 34126 51189 102378 284873 380671 569746 761342 854619 1142013 1709238 2284026 43015823 86031646 129047469 258094938