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252315344 = 2415769709
BaseRepresentation
bin11110000101000…
…00011011010000
3122120202221120202
433002200123100
51004043042334
641011554332
76152434151
oct1702403320
9576687522
10252315344
1111a475286
12705bb9a8
1340373528
142571d928
151724017e
hexf0a06d0

252315344 has 10 divisors (see below), whose sum is σ = 488861010. Its totient is φ = 126157664.

The previous prime is 252315319. The next prime is 252315347. The reversal of 252315344 is 443513252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 59105344 = 13900^2 + 7688^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252315347) by changing a digit.

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 as a sum of consecutive naturals, namely, 7884839 + ... + 7884870.

It is an arithmetic number, because the mean of its divisors is an integer number (48886101).

Almost surely, 2252315344 is an apocalyptic number.

It is an amenable number.

252315344 is a deficient number, since it is larger than the sum of its proper divisors (236545666).

252315344 is a wasteful number, since it uses less digits than its factorization.

252315344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15769717 (or 15769711 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 252315344 is about 15884.4371634629. The cubic root of 252315344 is about 631.8993190043.

Adding to 252315344 its reverse (443513252), we get a palindrome (695828596).

The spelling of 252315344 in words is "two hundred fifty-two million, three hundred fifteen thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 15769709 31539418 63078836 126157672 252315344