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253212368 = 24145910847
BaseRepresentation
bin11110001011110…
…11011011010000
3122122110112001212
433011323123100
51004310243433
641043115252
76163161323
oct1705733320
9578415055
10253212368
1111aa28222
1270972b28
13405c8906
14258b47ba
151736ad48
hexf17b6d0

253212368 has 20 divisors (see below), whose sum is σ = 490980480. Its totient is φ = 126507744.

The previous prime is 253212367. The next prime is 253212409. The reversal of 253212368 is 863212352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253212361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17921 + ... + 28767.

It is an arithmetic number, because the mean of its divisors is an integer number (24549024).

Almost surely, 2253212368 is an apocalyptic number.

It is an amenable number.

253212368 is a deficient number, since it is larger than the sum of its proper divisors (237768112).

253212368 is a wasteful number, since it uses less digits than its factorization.

253212368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314 (or 12308 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 253212368 is about 15912.6480511573. The cubic root of 253212368 is about 632.6472698885.

The spelling of 253212368 in words is "two hundred fifty-three million, two hundred twelve thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 1459 2918 5836 10847 11672 21694 23344 43388 86776 173552 15825773 31651546 63303092 126606184 253212368