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252245392 = 2477131721
BaseRepresentation
bin11110000100011…
…11010110010000
3122120122101121221
433002033112100
51004033323032
641010254424
76152023210
oct1702172620
9576571557
10252245392
1111a427773
1270587414
134034a739
1425702240
1517229597
hexf08f590

252245392 has 40 divisors (see below), whose sum is σ = 566428032. Its totient is φ = 106579200.

The previous prime is 252245333. The next prime is 252245417. The reversal of 252245392 is 293542252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7909 + ... + 23812.

Almost surely, 2252245392 is an apocalyptic number.

It is an amenable number.

252245392 is an abundant number, since it is smaller than the sum of its proper divisors (314182640).

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

252245392 is a wasteful number, since it uses less digits than its factorization.

252245392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31807 (or 31801 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 252245392 is about 15882.2351071882. The cubic root of 252245392 is about 631.8409176060.

The spelling of 252245392 in words is "two hundred fifty-two million, two hundred forty-five thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 56 71 112 142 284 497 568 994 1136 1988 3976 7952 31721 63442 126884 222047 253768 444094 507536 888188 1776376 2252191 3552752 4504382 9008764 15765337 18017528 31530674 36035056 63061348 126122696 252245392