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12799999999997 = 72238199871877
BaseRepresentation
bin1011101001000011101101…
…1100111111111111111101
31200022200001000012211202222
42322100323130333333331
53134203344444444442
643120123330255125
72460524634554360
oct272207334777775
950280030184688
1012799999999997
1140954a43395a1
1215288861274a5
1371b05b669252
14323747d440d7
15172e562128d2
hexba43b73fffd

12799999999997 has 8 divisors (see below), whose sum is σ = 14694170405376. Its totient is φ = 10922229338832.

The previous prime is 12799999999949. The next prime is 12800000000003. The reversal of 12799999999997 is 79999999999721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12799999999997 - 28 = 12799999999741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12799999999894 and 12799999999903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799999959997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099934378 + ... + 4099937499.

It is an arithmetic number, because the mean of its divisors is an integer number (1836771300672).

Almost surely, 212799999999997 is an apocalyptic number.

It is an amenable number.

12799999999997 is a deficient number, since it is larger than the sum of its proper divisors (1894170405379).

12799999999997 is an equidigital number, since it uses as much as digits as its factorization.

12799999999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199872107.

The product of its digits is 341704871298, while the sum is 107.

The spelling of 12799999999997 in words is "twelve trillion, seven hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".

Divisors: 1 7 223 1561 8199871877 57399103139 1828571428571 12799999999997