Base | Representation |
---|---|
bin | 10111101110110101… |
… | …01000100010000010 |
3 | 1012212221020012120220 |
4 | 23313122220202002 |
5 | 202043131414311 |
6 | 5504133243510 |
7 | 630505524060 |
oct | 136732504202 |
9 | 35787205526 |
10 | 12740888706 |
11 | 5448999297 |
12 | 2576a93596 |
13 | 12807bc100 |
14 | 88c19b030 |
15 | 4e881d206 |
hex | 2f76a8882 |
12740888706 has 192 divisors, whose sum is σ = 32532000768. Its totient is φ = 3255842304.
The previous prime is 12740888597. The next prime is 12740888711. The reversal of 12740888706 is 60788804721.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34716135 + ... + 34716501.
It is an arithmetic number, because the mean of its divisors is an integer number (169437504).
Almost surely, 212740888706 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12740888706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16266000384).
12740888706 is an abundant number, since it is smaller than the sum of its proper divisors (19791112062).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12740888706 is a wasteful number, since it uses less digits than its factorization.
12740888706 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 545 (or 532 counting only the distinct ones).
The product of its (nonzero) digits is 1204224, while the sum is 51.
The spelling of 12740888706 in words is "twelve billion, seven hundred forty million, eight hundred eighty-eight thousand, seven hundred six".
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