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523231241 = 1340248557
BaseRepresentation
bin11111001011111…
…110000000001001
31100110112220022212
4133023332000021
52032421344431
6123530354505
715652251341
oct3713760011
91313486285
10523231241
11249394415
1212728ba35
138452a1b0
144d6c1d21
1530e0672b
hex1f2fe009

523231241 has 4 divisors (see below), whose sum is σ = 563479812. Its totient is φ = 482982672.

The previous prime is 523231193. The next prime is 523231249. The reversal of 523231241 is 142132325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 286963600 + 236267641 = 16940^2 + 15371^2 .

It is a cyclic number.

It is not a de Polignac number, because 523231241 - 210 = 523230217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523231249) 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, 20124266 + ... + 20124291.

It is an arithmetic number, because the mean of its divisors is an integer number (140869953).

Almost surely, 2523231241 is an apocalyptic number.

It is an amenable number.

523231241 is a deficient number, since it is larger than the sum of its proper divisors (40248571).

523231241 is a wasteful number, since it uses less digits than its factorization.

523231241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40248570.

The product of its digits is 1440, while the sum is 23.

The square root of 523231241 is about 22874.2484248117. The cubic root of 523231241 is about 805.8073460942.

Adding to 523231241 its reverse (142132325), we get a palindrome (665363566).

The spelling of 523231241 in words is "five hundred twenty-three million, two hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 13 40248557 523231241