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12724769247 = 3103163252641
BaseRepresentation
bin10111101100111010…
…01001000111011111
31012211210220020211220
423312131021013133
5202030020103442
65502355544423
7630221516421
oct136635110737
935753806756
1012724769247
11543a889523
1225715bb113
13127a367078
14889da2811
154e71d6eec
hex2f67491df

12724769247 has 16 divisors (see below), whose sum is σ = 17236247808. Its totient is φ = 8349246720.

The previous prime is 12724769209. The next prime is 12724769269. The reversal of 12724769247 is 74296742721.

It is not a de Polignac number, because 12724769247 - 214 = 12724752863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12724769247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724769287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75954 + ... + 176687.

It is an arithmetic number, because the mean of its divisors is an integer number (1077265488).

Almost surely, 212724769247 is an apocalyptic number.

12724769247 is a deficient number, since it is larger than the sum of its proper divisors (4511478561).

12724769247 is a wasteful number, since it uses less digits than its factorization.

12724769247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252910.

The product of its digits is 2370816, while the sum is 51.

The spelling of 12724769247 in words is "twelve billion, seven hundred twenty-four million, seven hundred sixty-nine thousand, two hundred forty-seven".

Divisors: 1 3 103 163 309 489 16789 50367 252641 757923 26022023 41180483 78066069 123541449 4241589749 12724769247