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252504169 = 3710976221
BaseRepresentation
bin11110000110011…
…10100001101001
3122121010112121021
433003032201221
51004120113134
641020012441
76154151521
oct1703164151
9577115537
10252504169
1111a594135
1270691121
134040b468
142576c681
151727b0b4
hexf0ce869

252504169 has 8 divisors (see below), whose sum is σ = 259606728. Its totient is φ = 245416320.

The previous prime is 252504157. The next prime is 252504181. The reversal of 252504169 is 961405252.

It is a happy number.

252504169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252504157) and next prime (252504181).

It can be written as a sum of positive squares in 4 ways, for example, as 11478544 + 241025625 = 3388^2 + 15525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252504169 - 217 = 252373097 is a prime.

It is a super-2 number, since 2×2525041692 = 127516710724761122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252504139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37479 + ... + 43699.

It is an arithmetic number, because the mean of its divisors is an integer number (32450841).

Almost surely, 2252504169 is an apocalyptic number.

It is an amenable number.

252504169 is a deficient number, since it is larger than the sum of its proper divisors (7102559).

252504169 is a wasteful number, since it uses less digits than its factorization.

252504169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 252504169 is about 15890.3797626111. The cubic root of 252504169 is about 632.0569110010.

The spelling of 252504169 in words is "two hundred fifty-two million, five hundred four thousand, one hundred sixty-nine".

Divisors: 1 37 1097 6221 40589 230177 6824437 252504169