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130331329 = 472773007
BaseRepresentation
bin1111100010010…
…11001011000001
3100002020111222021
413301023023001
5231331100304
620533241441
73141540502
oct761131301
9302214867
10130331329
1167628947
1237793281
132100353b
1413448ba9
15b696a54
hex7c4b2c1

130331329 has 4 divisors (see below), whose sum is σ = 133104384. Its totient is φ = 127558276.

The previous prime is 130331303. The next prime is 130331339. The reversal of 130331329 is 923133031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130331329 - 29 = 130330817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130331339) 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, 1386457 + ... + 1386550.

It is an arithmetic number, because the mean of its divisors is an integer number (33276096).

Almost surely, 2130331329 is an apocalyptic number.

It is an amenable number.

130331329 is a deficient number, since it is larger than the sum of its proper divisors (2773055).

130331329 is an equidigital number, since it uses as much as digits as its factorization.

130331329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773054.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 130331329 is about 11416.2747426645. The cubic root of 130331329 is about 507.0097074315.

The spelling of 130331329 in words is "one hundred thirty million, three hundred thirty-one thousand, three hundred twenty-nine".

Divisors: 1 47 2773007 130331329