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252233345 = 5713242643
BaseRepresentation
bin11110000100011…
…00011010000001
3122120121210002202
433002030122001
51004032431340
641010122545
76151643120
oct1702143201
9576553082
10252233345
1111a419711
1270580455
1340345100
14256dbab7
1517225c15
hexf08c681

252233345 has 24 divisors (see below), whose sum is σ = 374584896. Its totient is φ = 159651648.

The previous prime is 252233327. The next prime is 252233357. The reversal of 252233345 is 543332252.

It is not a de Polignac number, because 252233345 - 212 = 252229249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15407 + ... + 27236.

It is an arithmetic number, because the mean of its divisors is an integer number (15607704).

Almost surely, 2252233345 is an apocalyptic number.

It is an amenable number.

252233345 is a deficient number, since it is larger than the sum of its proper divisors (122351551).

252233345 is a wasteful number, since it uses less digits than its factorization.

252233345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42681 (or 42668 counting only the distinct ones).

The product of its digits is 21600, while the sum is 29.

The square root of 252233345 is about 15881.8558424386. The cubic root of 252233345 is about 631.8308587388.

Adding to 252233345 its reverse (543332252), we get a palindrome (795565597).

The spelling of 252233345 in words is "two hundred fifty-two million, two hundred thirty-three thousand, three hundred forty-five".

Divisors: 1 5 7 13 35 65 91 169 455 845 1183 5915 42643 213215 298501 554359 1492505 2771795 3880513 7206667 19402565 36033335 50446669 252233345