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252828285 = 3553318023
BaseRepresentation
bin11110001000111…
…01101001111101
3122121202000012120
433010131221331
51004211001120
641030553153
76160001463
oct1704355175
9577660176
10252828285
1111a7956a6
12708087b9
13404c2b48
1425814833
15172e2140
hexf11da7d

252828285 has 16 divisors (see below), whose sum is σ = 412159104. Its totient is φ = 132297152.

The previous prime is 252828283. The next prime is 252828311. The reversal of 252828285 is 582828252.

It is a cyclic number.

It is not a de Polignac number, because 252828285 - 21 = 252828283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252828283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158217 + ... + 159806.

It is an arithmetic number, because the mean of its divisors is an integer number (25759944).

Almost surely, 2252828285 is an apocalyptic number.

It is an amenable number.

252828285 is a deficient number, since it is larger than the sum of its proper divisors (159330819).

252828285 is a wasteful number, since it uses less digits than its factorization.

252828285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318084.

The product of its digits is 204800, while the sum is 42.

The square root of 252828285 is about 15900.5749896034. The cubic root of 252828285 is about 632.3272328309.

The spelling of 252828285 in words is "two hundred fifty-two million, eight hundred twenty-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 15 53 159 265 795 318023 954069 1590115 4770345 16855219 50565657 84276095 252828285