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252938001 = 384312667
BaseRepresentation
bin11110001001110…
…00011100010001
3122121221120201010
433010320130101
51004223004001
641033201133
76160636401
oct1704703421
9577846633
10252938001
1111a860078
12708601a9
1340530a74
1425842801
15173148d6
hexf138711

252938001 has 4 divisors (see below), whose sum is σ = 337250672. Its totient is φ = 168625332.

The previous prime is 252937991. The next prime is 252938003. The reversal of 252938001 is 100839252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 252938001 - 27 = 252937873 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 252938001.

It is not an unprimeable number, because it can be changed into a prime (252938003) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42156331 + ... + 42156336.

It is an arithmetic number, because the mean of its divisors is an integer number (84312668).

Almost surely, 2252938001 is an apocalyptic number.

It is an amenable number.

252938001 is a deficient number, since it is larger than the sum of its proper divisors (84312671).

252938001 is an equidigital number, since it uses as much as digits as its factorization.

252938001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84312670.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 252938001 is about 15904.0246793068. The cubic root of 252938001 is about 632.4186867093.

The spelling of 252938001 in words is "two hundred fifty-two million, nine hundred thirty-eight thousand, one".

Divisors: 1 3 84312667 252938001