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130333631 = 239545329
BaseRepresentation
bin1111100010010…
…11101110111111
3100002020122010112
413301023232333
5231331134011
620533300235
73141550301
oct761135677
9302218115
10130333631
116762a64a
123779467b
13210045bc
1413449971
15b69758b
hex7c4bbbf

130333631 has 4 divisors (see below), whose sum is σ = 130879200. Its totient is φ = 129788064.

The previous prime is 130333607. The next prime is 130333633. The reversal of 130333631 is 136333031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130333631 is a prime.

It is a super-2 number, since 2×1303336312 = 33973710739288322, 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 = 130333597 and 130333606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130333633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272426 + ... + 272903.

It is an arithmetic number, because the mean of its divisors is an integer number (32719800).

Almost surely, 2130333631 is an apocalyptic number.

130333631 is a deficient number, since it is larger than the sum of its proper divisors (545569).

130333631 is an equidigital number, since it uses as much as digits as its factorization.

130333631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545568.

The product of its (nonzero) digits is 1458, while the sum is 23.

The square root of 130333631 is about 11416.3755631987. The cubic root of 130333631 is about 507.0126924633.

Adding to 130333631 its reverse (136333031), we get a palindrome (266666662).

The spelling of 130333631 in words is "one hundred thirty million, three hundred thirty-three thousand, six hundred thirty-one".

Divisors: 1 239 545329 130333631