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64325131 = 134948087
BaseRepresentation
bin1111010101100…
…0011000001011
311111001001111021
43311120120023
5112431401011
610214413311
71410516553
oct365303013
9144031437
1064325131
1133345472
1219661237
1310432810
148786163
1559a9471
hex3d5860b

64325131 has 4 divisors (see below), whose sum is σ = 69273232. Its totient is φ = 59377032.

The previous prime is 64325117. The next prime is 64325141. The reversal of 64325131 is 13152346.

64325131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64325131 - 25 = 64325099 is a prime.

It is a super-2 number, since 2×643251312 = 8275444956334322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64325096 and 64325105.

It is not an unprimeable number, because it can be changed into a prime (64325101) 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, 2474031 + ... + 2474056.

It is an arithmetic number, because the mean of its divisors is an integer number (17318308).

Almost surely, 264325131 is an apocalyptic number.

64325131 is a deficient number, since it is larger than the sum of its proper divisors (4948101).

64325131 is a wasteful number, since it uses less digits than its factorization.

64325131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948100.

The product of its digits is 2160, while the sum is 25.

The square root of 64325131 is about 8020.2949447012. The cubic root of 64325131 is about 400.6762124476.

Adding to 64325131 its reverse (13152346), we get a palindrome (77477477).

The spelling of 64325131 in words is "sixty-four million, three hundred twenty-five thousand, one hundred thirty-one".

Divisors: 1 13 4948087 64325131