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252443511 = 32239117361
BaseRepresentation
bin11110000101111…
…11101101110111
3122121000110101200
433002333231313
51004111143021
641014423543
76153506625
oct1702775567
9577013350
10252443511
1111a552601
1270661bb3
13403b9978
1425754515
1517268126
hexf0bfb77

252443511 has 12 divisors (see below), whose sum is σ = 366169440. Its totient is φ = 167590080.

The previous prime is 252443467. The next prime is 252443531. The reversal of 252443511 is 115344252.

It is not a de Polignac number, because 252443511 - 27 = 252443383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252443531) 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, 56530 + ... + 60831.

It is an arithmetic number, because the mean of its divisors is an integer number (30514120).

Almost surely, 2252443511 is an apocalyptic number.

252443511 is a deficient number, since it is larger than the sum of its proper divisors (113725929).

252443511 is a wasteful number, since it uses less digits than its factorization.

252443511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117606 (or 117603 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 252443511 is about 15888.4710088794. The cubic root of 252443511 is about 632.0062948353.

Adding to 252443511 its reverse (115344252), we get a palindrome (367787763).

The spelling of 252443511 in words is "two hundred fifty-two million, four hundred forty-three thousand, five hundred eleven".

Divisors: 1 3 9 239 717 2151 117361 352083 1056249 28049279 84147837 252443511