Base | Representation |
---|---|
bin | 10111101011011010… |
… | …00000001001001100 |
3 | 1012210221011002220211 |
4 | 23311231000021030 |
5 | 202013302241310 |
6 | 5501225252204 |
7 | 630006326404 |
oct | 136555001114 |
9 | 35727132824 |
10 | 12712149580 |
11 | 543374a149 |
12 | 2569334064 |
13 | 1277869000 |
14 | 888439804 |
15 | 4e6042c8a |
hex | 2f5b4024c |
12712149580 has 96 divisors (see below), whose sum is σ = 29088360000. Its totient is φ = 4666281984.
The previous prime is 12712149577. The next prime is 12712149629. The reversal of 12712149580 is 8594121721.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8479671 + ... + 8481169.
It is an arithmetic number, because the mean of its divisors is an integer number (303003750).
Almost surely, 212712149580 is an apocalyptic number.
12712149580 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 12712149580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14544180000).
12712149580 is an abundant number, since it is smaller than the sum of its proper divisors (16376210420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12712149580 is a wasteful number, since it uses less digits than its factorization.
12712149580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1740 (or 1712 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 40.
The spelling of 12712149580 in words is "twelve billion, seven hundred twelve million, one hundred forty-nine thousand, five hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •