[go: up one dir, main page]

Search a number
-
+
522012431 is a prime number
BaseRepresentation
bin11111000111010…
…100011100001111
31100101020222102202
4133013110130033
52032113344211
6123444312115
715636014063
oct3707243417
91311228382
10522012431
11248731736
121269a263b
13841c14c5
144d485aa3
1530c6553b
hex1f1d470f

522012431 has 2 divisors, whose sum is σ = 522012432. Its totient is φ = 522012430.

The previous prime is 522012419. The next prime is 522012433. The reversal of 522012431 is 134210225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522012431 - 210 = 522011407 is a prime.

It is a super-2 number, since 2×5220124312 = 544993956237059522, which contains 22 as substring.

Together with 522012433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522012433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261006215 + 261006216.

It is an arithmetic number, because the mean of its divisors is an integer number (261006216).

Almost surely, 2522012431 is an apocalyptic number.

522012431 is a deficient number, since it is larger than the sum of its proper divisors (1).

522012431 is an equidigital number, since it uses as much as digits as its factorization.

522012431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 522012431 is about 22847.5913610166. The cubic root of 522012431 is about 805.1811795940.

Adding to 522012431 its reverse (134210225), we get a palindrome (656222656).

The spelling of 522012431 in words is "five hundred twenty-two million, twelve thousand, four hundred thirty-one".