Base | Representation |
---|---|
bin | 10111101110110001… |
… | …01100100101000000 |
3 | 1012212220021102010200 |
4 | 23313120230211000 |
5 | 202043014142432 |
6 | 5504114325200 |
7 | 630501310623 |
oct | 136730544500 |
9 | 35786242120 |
10 | 12740380992 |
11 | 5448681899 |
12 | 2576889800 |
13 | 1280671ca1 |
14 | 88c0a7dba |
15 | 4e876ca7c |
hex | 2f762c940 |
12740380992 has 504 divisors, whose sum is σ = 42927056640. Its totient is φ = 3586498560.
The previous prime is 12740380979. The next prime is 12740381021. The reversal of 12740380992 is 29908304721.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 271071913 + ... + 271071959.
Almost surely, 212740380992 is an apocalyptic number.
12740380992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12740380992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21463528320).
12740380992 is an abundant number, since it is smaller than the sum of its proper divisors (30186675648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12740380992 is a wasteful number, since it uses less digits than its factorization.
12740380992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 179 (or 119 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 45.
The spelling of 12740380992 in words is "twelve billion, seven hundred forty million, three hundred eighty thousand, nine hundred ninety-two".
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