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12825388371 = 34275129457
BaseRepresentation
bin10111111000111001…
…11110010101010011
31020002211020020100010
423330130332111103
5202231244411441
65520352330003
7632553000555
oct137434762523
936084206303
1012825388371
115491663124
12259b243903
131295166603
148994b54d5
15500e60116
hex2fc73e553

12825388371 has 4 divisors (see below), whose sum is σ = 17100517832. Its totient is φ = 8550258912.

The previous prime is 12825388351. The next prime is 12825388423. The reversal of 12825388371 is 17388352821.

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

It is not a de Polignac number, because 12825388371 - 210 = 12825387347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12825388371.

It is not an unprimeable number, because it can be changed into a prime (12825388321) 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, 2137564726 + ... + 2137564731.

It is an arithmetic number, because the mean of its divisors is an integer number (4275129458).

Almost surely, 212825388371 is an apocalyptic number.

12825388371 is a deficient number, since it is larger than the sum of its proper divisors (4275129461).

12825388371 is an equidigital number, since it uses as much as digits as its factorization.

12825388371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275129460.

The product of its digits is 645120, while the sum is 48.

The spelling of 12825388371 in words is "twelve billion, eight hundred twenty-five million, three hundred eighty-eight thousand, three hundred seventy-one".

Divisors: 1 3 4275129457 12825388371