Base | Representation |
---|---|
bin | 11000001010100000… |
… | …00011011111100100 |
3 | 1020111002222111201211 |
4 | 30011100003133210 |
5 | 203032041342310 |
6 | 5543144201204 |
7 | 636324436315 |
oct | 140520033744 |
9 | 36432874654 |
10 | 12972996580 |
11 | 5557a11385 |
12 | 2620769204 |
13 | 12b990894b |
14 | 8b0d3a60c |
15 | 50ddbac8a |
hex | 3054037e4 |
12972996580 has 24 divisors (see below), whose sum is σ = 27245433600. Its totient is φ = 5188790880.
The previous prime is 12972996577. The next prime is 12972996581. The reversal of 12972996580 is 8569927921.
It is not an unprimeable number, because it can be changed into a prime (12972996581) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478221 + ... + 504619.
It is an arithmetic number, because the mean of its divisors is an integer number (1135226400).
Almost surely, 212972996580 is an apocalyptic number.
12972996580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12972996580 is an abundant number, since it is smaller than the sum of its proper divisors (14272437020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12972996580 is a wasteful number, since it uses less digits than its factorization.
12972996580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50979 (or 50977 counting only the distinct ones).
The product of its (nonzero) digits is 4898880, while the sum is 58.
The spelling of 12972996580 in words is "twelve billion, nine hundred seventy-two million, nine hundred ninety-six thousand, five hundred eighty".
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