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538852931 = 737381547
BaseRepresentation
bin100000000111100…
…011111001000011
31101112221120020222
4200013203321003
52100421243211
6125245253255
716232113541
oct4007437103
91345846228
10538852931
11257194201
1213056422b
13878397b6
14517cad91
15324901db
hex201e3e43

538852931 has 4 divisors (see below), whose sum is σ = 546234552. Its totient is φ = 531471312.

The previous prime is 538852913. The next prime is 538852933. The reversal of 538852931 is 139258835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139258835 = 527851767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-538852931 is a prime.

It is a super-2 number, since 2×5388529312 = 580724962494581522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538852933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690701 + ... + 3690846.

It is an arithmetic number, because the mean of its divisors is an integer number (136558638).

Almost surely, 2538852931 is an apocalyptic number.

538852931 is a deficient number, since it is larger than the sum of its proper divisors (7381621).

538852931 is an equidigital number, since it uses as much as digits as its factorization.

538852931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381620.

The product of its digits is 259200, while the sum is 44.

The square root of 538852931 is about 23213.2059612627. The cubic root of 538852931 is about 813.7482791337.

The spelling of 538852931 in words is "five hundred thirty-eight million, eight hundred fifty-two thousand, nine hundred thirty-one".

Divisors: 1 73 7381547 538852931