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252111344 = 2431717159
BaseRepresentation
bin11110000011011…
…10100111110000
3122120101120202012
433001232213300
51004020030334
641003342052
76150624332
oct1701564760
9576346665
10252111344
1111a345a91
1270521928
1340301714
14256a9452
15171ee9ce
hexf06e9f0

252111344 has 40 divisors (see below), whose sum is σ = 511395840. Its totient is φ = 120254400.

The previous prime is 252111331. The next prime is 252111397. The reversal of 252111344 is 443111252.

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, 31637 + ... + 38795.

It is an arithmetic number, because the mean of its divisors is an integer number (12784896).

Almost surely, 2252111344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252111344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255697920).

252111344 is an abundant number, since it is smaller than the sum of its proper divisors (259284496).

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

252111344 is a wasteful number, since it uses less digits than its factorization.

252111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269 (or 7263 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 252111344 is about 15878.0144854450. The cubic root of 252111344 is about 631.7289736794.

Adding to 252111344 its reverse (443111252), we get a palindrome (695222596).

The spelling of 252111344 in words is "two hundred fifty-two million, one hundred eleven thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 31 62 71 124 142 248 284 496 568 1136 2201 4402 7159 8804 14318 17608 28636 35216 57272 114544 221929 443858 508289 887716 1016578 1775432 2033156 3550864 4066312 8132624 15756959 31513918 63027836 126055672 252111344