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52224013 = 91956827
BaseRepresentation
bin1100011100111…
…0000000001101
310122021020212201
43013032000031
5101332132023
65103201501
71202616412
oct307160015
9118236781
1052224013
112752a746
12155a6291
13aa867aa
146d16109
1548b8bad
hex31ce00d

52224013 has 4 divisors (see below), whose sum is σ = 52281760. Its totient is φ = 52166268.

The previous prime is 52224001. The next prime is 52224019. The reversal of 52224013 is 31042225.

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 52224013 - 217 = 52092941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52224019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27495 + ... + 29332.

It is an arithmetic number, because the mean of its divisors is an integer number (13070440).

Almost surely, 252224013 is an apocalyptic number.

It is an amenable number.

52224013 is a deficient number, since it is larger than the sum of its proper divisors (57747).

52224013 is an equidigital number, since it uses as much as digits as its factorization.

52224013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57746.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 52224013 is about 7226.6183654597. The cubic root of 52224013 is about 373.7863292837.

Adding to 52224013 its reverse (31042225), we get a palindrome (83266238).

The spelling of 52224013 in words is "fifty-two million, two hundred twenty-four thousand, thirteen".

Divisors: 1 919 56827 52224013