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130002839 = 383339433
BaseRepresentation
bin1111011111110…
…10111110010111
3100001121211100222
413233322332113
5231240042324
620522224555
73136002011
oct757727627
9301554328
10130002839
116742406a
123765515b
1320c19b75
14133a11b1
15b62e55e
hex7bfaf97

130002839 has 4 divisors (see below), whose sum is σ = 130342656. Its totient is φ = 129663024.

The previous prime is 130002833. The next prime is 130002863. The reversal of 130002839 is 938200031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938200031 = 1949378949.

It is a cyclic number.

It is not a de Polignac number, because 130002839 - 24 = 130002823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130002833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169334 + ... + 170099.

It is an arithmetic number, because the mean of its divisors is an integer number (32585664).

Almost surely, 2130002839 is an apocalyptic number.

130002839 is a deficient number, since it is larger than the sum of its proper divisors (339817).

130002839 is an equidigital number, since it uses as much as digits as its factorization.

130002839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339816.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 130002839 is about 11401.8787486975. The cubic root of 130002839 is about 506.5833895237.

The spelling of 130002839 in words is "one hundred thirty million, two thousand, eight hundred thirty-nine".

Divisors: 1 383 339433 130002839