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252545087 = 361369899
BaseRepresentation
bin11110000110110…
…00100000111111
3122121012121201202
433003120200333
51004122420322
641020530115
76154412024
oct1703304077
9577177652
10252545087
1111a611953
12706b093b
1340423c82
142577d54b
1517288292
hexf0d883f

252545087 has 4 divisors (see below), whose sum is σ = 252618600. Its totient is φ = 252471576.

The previous prime is 252545077. The next prime is 252545089. The reversal of 252545087 is 780545252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252545087 - 24 = 252545071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252545087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252545089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31337 + ... + 38562.

It is an arithmetic number, because the mean of its divisors is an integer number (63154650).

Almost surely, 2252545087 is an apocalyptic number.

252545087 is a deficient number, since it is larger than the sum of its proper divisors (73513).

252545087 is an equidigital number, since it uses as much as digits as its factorization.

252545087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73512.

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 252545087 is about 15891.6672190176. The cubic root of 252545087 is about 632.0910505136.

The spelling of 252545087 in words is "two hundred fifty-two million, five hundred forty-five thousand, eighty-seven".

Divisors: 1 3613 69899 252545087