Base | Representation |
---|---|
bin | 10111101101100100… |
… | …00110000010101010 |
3 | 1012212012020022001010 |
4 | 23312302012002222 |
5 | 202032421333144 |
6 | 5503113404350 |
7 | 630316303344 |
oct | 136662060252 |
9 | 35765208033 |
10 | 12730261674 |
11 | 54429a0019 |
12 | 25734096b6 |
13 | 127b53b020 |
14 | 88a9d2294 |
15 | 4e791e5b9 |
hex | 2f6c860aa |
12730261674 has 128 divisors (see below), whose sum is σ = 30433148928. Its totient is φ = 3510144000.
The previous prime is 12730261669. The next prime is 12730261681. The reversal of 12730261674 is 47616203721.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7654167 + ... + 7655829.
It is an arithmetic number, because the mean of its divisors is an integer number (237758976).
Almost surely, 212730261674 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12730261674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15216574464).
12730261674 is an abundant number, since it is smaller than the sum of its proper divisors (17702887254).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12730261674 is a wasteful number, since it uses less digits than its factorization.
12730261674 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1972.
The product of its (nonzero) digits is 84672, while the sum is 39.
The spelling of 12730261674 in words is "twelve billion, seven hundred thirty million, two hundred sixty-one thousand, six hundred seventy-four".
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