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12688299934 = 210361593689
BaseRepresentation
bin10111101000100100…
…00001011110011110
31012202021021102100121
423310102001132132
5201441201044214
65455014145154
7626266525042
oct136422013636
935667242317
1012688299934
11542123a5a2
1225613521ba
1312729385ab
148851cc022
154e3dd1424
hex2f448179e

12688299934 has 8 divisors (see below), whose sum is σ = 19217231280. Its totient is φ = 6282556176.

The previous prime is 12688299913. The next prime is 12688299973. The reversal of 12688299934 is 43999288621.

12688299934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30796639 + ... + 30797050.

It is an arithmetic number, because the mean of its divisors is an integer number (2402153910).

Almost surely, 212688299934 is an apocalyptic number.

12688299934 is a deficient number, since it is larger than the sum of its proper divisors (6528931346).

12688299934 is a wasteful number, since it uses less digits than its factorization.

12688299934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61593794.

The product of its digits is 13436928, while the sum is 61.

The spelling of 12688299934 in words is "twelve billion, six hundred eighty-eight million, two hundred ninety-nine thousand, nine hundred thirty-four".

Divisors: 1 2 103 206 61593689 123187378 6344149967 12688299934