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52224137 = 722932579
BaseRepresentation
bin1100011100111…
…0000010001001
310122021021001022
43013032002021
5101332133022
65103202225
71202616650
oct307160211
9118237038
1052224137
112752a849
12155a6375
13aa86874
146d16197
1548b8c42
hex31ce089

52224137 has 8 divisors (see below), whose sum is σ = 59947200. Its totient is φ = 44566704.

The previous prime is 52224091. The next prime is 52224163. The reversal of 52224137 is 73142225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52224137 - 212 = 52220041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52224197) 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 7 ways as a sum of consecutive naturals, for example, 14687 + ... + 17892.

It is an arithmetic number, because the mean of its divisors is an integer number (7493400).

Almost surely, 252224137 is an apocalyptic number.

It is an amenable number.

52224137 is a deficient number, since it is larger than the sum of its proper divisors (7723063).

52224137 is a wasteful number, since it uses less digits than its factorization.

52224137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32815.

The product of its digits is 3360, while the sum is 26.

The square root of 52224137 is about 7226.6269448478. The cubic root of 52224137 is about 373.7866251212.

The spelling of 52224137 in words is "fifty-two million, two hundred twenty-four thousand, one hundred thirty-seven".

Divisors: 1 7 229 1603 32579 228053 7460591 52224137