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252411441 = 384137147
BaseRepresentation
bin11110000101101…
…11111000110001
3122120221211101220
433002313320301
51004104131231
641014015253
76153314262
oct1702677061
9576854356
10252411441
1111a5304a7
1270647529
13403a81a9
1425746969
151725d896
hexf0b7e31

252411441 has 4 divisors (see below), whose sum is σ = 336548592. Its totient is φ = 168274292.

The previous prime is 252411413. The next prime is 252411451. The reversal of 252411441 is 144114252.

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 252411441 - 211 = 252409393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252411451) 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, 42068571 + ... + 42068576.

It is an arithmetic number, because the mean of its divisors is an integer number (84137148).

Almost surely, 2252411441 is an apocalyptic number.

It is an amenable number.

252411441 is a deficient number, since it is larger than the sum of its proper divisors (84137151).

252411441 is an equidigital number, since it uses as much as digits as its factorization.

252411441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84137150.

The product of its digits is 1280, while the sum is 24.

The square root of 252411441 is about 15887.4617544780. The cubic root of 252411441 is about 631.9795306955.

Adding to 252411441 its reverse (144114252), we get a palindrome (396525693).

The spelling of 252411441 in words is "two hundred fifty-two million, four hundred eleven thousand, four hundred forty-one".

Divisors: 1 3 84137147 252411441