Base | Representation |
---|---|
bin | 110000100110… |
… | …110000011100 |
3 | 212222100021100 |
4 | 300212300130 |
5 | 11230213120 |
6 | 1133033100 |
7 | 213205461 |
oct | 60466034 |
9 | 25870240 |
10 | 12741660 |
11 | 7212aa8 |
12 | 4325790 |
13 | 2841759 |
14 | 1999668 |
15 | 11ba490 |
hex | c26c1c |
12741660 has 72 divisors (see below), whose sum is σ = 39233376. Its totient is φ = 3346560.
The previous prime is 12741613. The next prime is 12741661. The reversal of 12741660 is 6614721.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12741661) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12282 + ... + 13278.
It is an arithmetic number, because the mean of its divisors is an integer number (544908).
Almost surely, 212741660 is an apocalyptic number.
12741660 is a gapful number since it is divisible by the number (10) 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 12741660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19616688).
12741660 is an abundant number, since it is smaller than the sum of its proper divisors (26491716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12741660 is a wasteful number, since it uses less digits than its factorization.
12741660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1083 (or 1078 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 12741660 is about 3569.5461896437. The cubic root of 12741660 is about 233.5654877628.
Adding to 12741660 its product of nonzero digits (2016), we get a triangular number (12743676 = T5048).
The spelling of 12741660 in words is "twelve million, seven hundred forty-one thousand, six hundred sixty".
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