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130605323 = 929140587
BaseRepresentation
bin1111100100011…
…10000100001011
3100002202102211012
413302032010023
5231413332243
620543154135
73144061352
oct762160413
9302672735
10130605323
11677a5792
12378a594b
132109b174
14134ba999
15b6ecd18
hex7c8e10b

130605323 has 4 divisors (see below), whose sum is σ = 130746840. Its totient is φ = 130463808.

The previous prime is 130605269. The next prime is 130605329. The reversal of 130605323 is 323506031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323506031 = 417890391.

It is a cyclic number.

It is not a de Polignac number, because 130605323 - 212 = 130601227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130605329) 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, 69365 + ... + 71222.

It is an arithmetic number, because the mean of its divisors is an integer number (32686710).

Almost surely, 2130605323 is an apocalyptic number.

130605323 is a deficient number, since it is larger than the sum of its proper divisors (141517).

130605323 is an equidigital number, since it uses as much as digits as its factorization.

130605323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141516.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 130605323 is about 11428.2685915234. The cubic root of 130605323 is about 507.3647522343.

The spelling of 130605323 in words is "one hundred thirty million, six hundred five thousand, three hundred twenty-three".

Divisors: 1 929 140587 130605323