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252575461 = 673769783
BaseRepresentation
bin11110000110111…
…11111011100101
3122121021011101201
433003133323211
51004124403321
641021322501
76154566415
oct1703377345
9577234351
10252575461
1111a632756
1270706431
1340434a48
142578a645
1517292291
hexf0dfee5

252575461 has 4 divisors (see below), whose sum is σ = 256345312. Its totient is φ = 248805612.

The previous prime is 252575459. The next prime is 252575483. The reversal of 252575461 is 164575252.

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 a cyclic number.

It is not a de Polignac number, because 252575461 - 21 = 252575459 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 252575461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252572461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884825 + ... + 1884958.

It is an arithmetic number, because the mean of its divisors is an integer number (64086328).

Almost surely, 2252575461 is an apocalyptic number.

It is an amenable number.

252575461 is a deficient number, since it is larger than the sum of its proper divisors (3769851).

252575461 is an equidigital number, since it uses as much as digits as its factorization.

252575461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769850.

The product of its digits is 84000, while the sum is 37.

The square root of 252575461 is about 15892.6228483533. The cubic root of 252575461 is about 632.1163903637.

The spelling of 252575461 in words is "two hundred fifty-two million, five hundred seventy-five thousand, four hundred sixty-one".

Divisors: 1 67 3769783 252575461