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12739720759 = 110711150729
BaseRepresentation
bin10111101110101100…
…01011011000110111
31012212212000212110121
423313112023120313
5202042332031014
65504052232411
7630462561013
oct136726133067
935785025417
1012739720759
115448270847
12257660b707
1312804a060c
1488bd75543
154e868c124
hex2f758b637

12739720759 has 4 divisors (see below), whose sum is σ = 12740882560. Its totient is φ = 12738558960.

The previous prime is 12739720733. The next prime is 12739720771. The reversal of 12739720759 is 95702793721.

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

It is a cyclic number.

It is not a de Polignac number, because 12739720759 - 29 = 12739720247 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 (12139720759) 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, 564294 + ... + 586435.

It is an arithmetic number, because the mean of its divisors is an integer number (3185220640).

Almost surely, 212739720759 is an apocalyptic number.

12739720759 is a deficient number, since it is larger than the sum of its proper divisors (1161801).

12739720759 is a wasteful number, since it uses less digits than its factorization.

12739720759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161800.

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 12739720759 in words is "twelve billion, seven hundred thirty-nine million, seven hundred twenty thousand, seven hundred fifty-nine".

Divisors: 1 11071 1150729 12739720759