Search a number
-
+
531875233 is a prime number
BaseRepresentation
bin11111101100111…
…100010110100001
31101001211001122201
4133230330112201
52042130001413
6124435533201
716115602441
oct3754742641
91331731581
10531875233
1125325880a
1212a15a201
1386265796
14508d2121
1531a629dd
hex1fb3c5a1

531875233 has 2 divisors, whose sum is σ = 531875234. Its totient is φ = 531875232.

The previous prime is 531875231. The next prime is 531875249. The reversal of 531875233 is 332578135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513838224 + 18037009 = 22668^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 531875233 - 21 = 531875231 is a prime.

Together with 531875231, it forms a pair of twin primes.

It is equal to p27943921 and since 531875233 and 27943921 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 531875192 and 531875201.

It is not a weakly prime, because it can be changed into another prime (531875231) 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, 265937616 + 265937617.

It is an arithmetic number, because the mean of its divisors is an integer number (265937617).

Almost surely, 2531875233 is an apocalyptic number.

It is an amenable number.

531875233 is a deficient number, since it is larger than the sum of its proper divisors (1).

531875233 is an equidigital number, since it uses as much as digits as its factorization.

531875233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 531875233 is about 23062.4203630061. The cubic root of 531875233 is about 810.2205531601.

The spelling of 531875233 in words is "five hundred thirty-one million, eight hundred seventy-five thousand, two hundred thirty-three".