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252433311 = 31361106109
BaseRepresentation
bin11110000101111…
…01001110011111
3122120222221101220
433002331032133
51004110331221
641014304423
76153435114
oct1702751637
9576887356
10252433311
1111a545979
1270658113
13403b5130
142575090b
15172650c6
hexf0bd39f

252433311 has 16 divisors (see below), whose sum is σ = 368413920. Its totient is φ = 152795520.

The previous prime is 252433309. The next prime is 252433319. The reversal of 252433311 is 113334252.

It is not a de Polignac number, because 252433311 - 21 = 252433309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252433319) 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, 50676 + ... + 55433.

It is an arithmetic number, because the mean of its divisors is an integer number (23025870).

Almost surely, 2252433311 is an apocalyptic number.

252433311 is a deficient number, since it is larger than the sum of its proper divisors (115980609).

252433311 is a wasteful number, since it uses less digits than its factorization.

252433311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106186.

The product of its digits is 2160, while the sum is 24.

The square root of 252433311 is about 15888.1500181739. The cubic root of 252433311 is about 631.9977826326.

Adding to 252433311 its reverse (113334252), we get a palindrome (365767563).

The spelling of 252433311 in words is "two hundred fifty-two million, four hundred thirty-three thousand, three hundred eleven".

Divisors: 1 3 13 39 61 183 793 2379 106109 318327 1379417 4138251 6472649 19417947 84144437 252433311