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12876923798 = 26438461899
BaseRepresentation
bin10111111111000011…
…00100001110010110
31020020102012111122122
423333201210032112
5202332443030143
65525433055542
7634050021614
oct137741441626
936212174578
1012876923798
115508762492
1225b45575b2
1312a2a3b84b
148a228c6b4
1550573ec68
hex2ff864396

12876923798 has 4 divisors (see below), whose sum is σ = 19315385700. Its totient is φ = 6438461898.

The previous prime is 12876923797. The next prime is 12876923821. The reversal of 12876923798 is 89732967821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89732967821 = 712818995403.

It is a self number, because there is not a number n which added to its sum of digits gives 12876923798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12876923797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219230948 + ... + 3219230951.

It is an arithmetic number, because the mean of its divisors is an integer number (4828846425).

Almost surely, 212876923798 is an apocalyptic number.

12876923798 is a deficient number, since it is larger than the sum of its proper divisors (6438461902).

12876923798 is an equidigital number, since it uses as much as digits as its factorization.

12876923798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438461901.

The product of its digits is 18289152, while the sum is 62.

The spelling of 12876923798 in words is "twelve billion, eight hundred seventy-six million, nine hundred twenty-three thousand, seven hundred ninety-eight".

Divisors: 1 2 6438461899 12876923798