Base | Representation |
---|---|
bin | 10110100101001011… |
… | …00111100000001000 |
3 | 1011021212120202211101 |
4 | 23102211213200020 |
5 | 144311442323310 |
6 | 5322542111144 |
7 | 606263615425 |
oct | 132245474010 |
9 | 34255522741 |
10 | 12123011080 |
11 | 516113a724 |
12 | 2423b7b4b4 |
13 | 11b27a414b |
14 | 8300bcd4c |
15 | 4ae46d43a |
hex | 2d2967808 |
12123011080 has 32 divisors (see below), whose sum is σ = 27281203200. Its totient is φ = 4848417216.
The previous prime is 12123011071. The next prime is 12123011081. The reversal of 12123011080 is 8011032121.
It is not an unprimeable number, because it can be changed into a prime (12123011081) 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, 267769 + ... + 309751.
It is an arithmetic number, because the mean of its divisors is an integer number (852537600).
Almost surely, 212123011080 is an apocalyptic number.
12123011080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12123011080 is an abundant number, since it is smaller than the sum of its proper divisors (15158192120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12123011080 is a wasteful number, since it uses less digits than its factorization.
12123011080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49213 (or 49209 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 19.
The spelling of 12123011080 in words is "twelve billion, one hundred twenty-three million, eleven thousand, eighty".
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