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258039068 = 22715161031
BaseRepresentation
bin11110110000101…
…01110100011100
3122222112202001112
433120111310130
51012024222233
641334401152
76252203330
oct1730256434
9588482045
10258039068
11122724631
12725001b8
13415c8851
14263ad7c0
15179c1048
hexf615d1c

258039068 has 24 divisors (see below), whose sum is σ = 519504384. Its totient is φ = 109854000.

The previous prime is 258039059. The next prime is 258039091. The reversal of 258039068 is 860930852.

It is a super-2 number, since 2×2580390682 = 133168321228617248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26288 + ... + 34743.

It is an arithmetic number, because the mean of its divisors is an integer number (21646016).

Almost surely, 2258039068 is an apocalyptic number.

258039068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

258039068 is an abundant number, since it is smaller than the sum of its proper divisors (261465316).

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

258039068 is a wasteful number, since it uses less digits than its factorization.

258039068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61193 (or 61191 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 258039068 is about 16063.5944918938. The cubic root of 258039068 is about 636.6418075812.

The spelling of 258039068 in words is "two hundred fifty-eight million, thirty-nine thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 4228 61031 122062 244124 427217 854434 1708868 9215681 18431362 36862724 64509767 129019534 258039068