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130402289 = 964313523
BaseRepresentation
bin1111100010111…
…00011111110001
3100002101010022102
413301130133301
5231340333124
620534550145
73142254413
oct761343761
9302333272
10130402289
1167677196
1237808355
1321029924
14134669b3
15b6acaae
hex7c5c7f1

130402289 has 4 divisors (see below), whose sum is σ = 130425456. Its totient is φ = 130379124.

The previous prime is 130402199. The next prime is 130402303. The reversal of 130402289 is 982204031.

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 130402289 - 216 = 130336753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130401289) 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 in 3 ways as a sum of consecutive naturals, for example, 2882 + ... + 16404.

It is an arithmetic number, because the mean of its divisors is an integer number (32606364).

Almost surely, 2130402289 is an apocalyptic number.

It is an amenable number.

130402289 is a deficient number, since it is larger than the sum of its proper divisors (23167).

130402289 is an equidigital number, since it uses as much as digits as its factorization.

130402289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23166.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 130402289 is about 11419.3821636724. The cubic root of 130402289 is about 507.1017059854.

The spelling of 130402289 in words is "one hundred thirty million, four hundred two thousand, two hundred eighty-nine".

Divisors: 1 9643 13523 130402289