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258307052 = 22192414363
BaseRepresentation
bin11110110010101…
…11001111101100
3200000001100122212
433121113033230
51012111311202
641344225552
76254400533
oct1731271754
9600040585
10258307052
11122897a03
127260b2b8
1341690813
142643d31a
1517a25652
hexf6573ec

258307052 has 36 divisors (see below), whose sum is σ = 488829096. Its totient is φ = 119344320.

The previous prime is 258307051. The next prime is 258307057. The reversal of 258307052 is 250703852.

It is a super-2 number, since 2×2583070522 = 133445066225861408, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (258307051) 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, 57023 + ... + 61385.

It is an arithmetic number, because the mean of its divisors is an integer number (13578586).

Almost surely, 2258307052 is an apocalyptic number.

It is an amenable number.

258307052 is a deficient number, since it is larger than the sum of its proper divisors (230522044).

258307052 is a wasteful number, since it uses less digits than its factorization.

258307052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446 (or 4425 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 258307052 is about 16071.9336733325. The cubic root of 258307052 is about 636.8621240779.

Adding to 258307052 its product of nonzero digits (16800), we get a palindrome (258323852).

The spelling of 258307052 in words is "two hundred fifty-eight million, three hundred seven thousand, fifty-two".

Divisors: 1 2 4 19 38 41 76 82 164 361 722 779 1444 1558 3116 4363 8726 14801 17452 29602 59204 82897 165794 178883 331588 357766 715532 1575043 3150086 3398777 6300172 6797554 13595108 64576763 129153526 258307052