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12745375149 = 313225138807
BaseRepresentation
bin10111101111010111…
…01111110110101101
31012220020200010211110
423313223233312231
5202100304001044
65504413342233
7630561621063
oct136753576655
935806603743
1012745375149
115450482aa1
122578497979
131281700200
1488ca08033
154e8e076b9
hex2f7aefdad

12745375149 has 12 divisors (see below), whose sum is σ = 18401607456. Its totient is φ = 7843307472.

The previous prime is 12745375121. The next prime is 12745375193. The reversal of 12745375149 is 94157354721.

It is not a de Polignac number, because 12745375149 - 29 = 12745374637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12745375098 and 12745375107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745375249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12568897 + ... + 12569910.

It is an arithmetic number, because the mean of its divisors is an integer number (1533467288).

Almost surely, 212745375149 is an apocalyptic number.

It is an amenable number.

12745375149 is a deficient number, since it is larger than the sum of its proper divisors (5656232307).

12745375149 is a wasteful number, since it uses less digits than its factorization.

12745375149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25138836 (or 25138823 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 12745375149 in words is "twelve billion, seven hundred forty-five million, three hundred seventy-five thousand, one hundred forty-nine".

Divisors: 1 3 13 39 169 507 25138807 75416421 326804491 980413473 4248458383 12745375149