Base | Representation |
---|---|
bin | 10110100100110100… |
… | …01001000110100100 |
3 | 1011021122220221111021 |
4 | 23102122021012210 |
5 | 144310210043410 |
6 | 5322353420524 |
7 | 606226216441 |
oct | 132232110644 |
9 | 34248827437 |
10 | 12120002980 |
11 | 515a475698 |
12 | 2422b6a744 |
13 | 11b1c8cbc7 |
14 | 82d9389c8 |
15 | 4ae076eda |
hex | 2d26891a4 |
12120002980 has 48 divisors (see below), whose sum is σ = 25559089920. Its totient is φ = 4827651200.
The previous prime is 12120002969. The next prime is 12120002987. The reversal of 12120002980 is 8920002121.
It is not an unprimeable number, because it can be changed into a prime (12120002987) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8020425 + ... + 8021935.
It is an arithmetic number, because the mean of its divisors is an integer number (532481040).
Almost surely, 212120002980 is an apocalyptic number.
12120002980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12120002980 is an abundant number, since it is smaller than the sum of its proper divisors (13439086940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12120002980 is a wasteful number, since it uses less digits than its factorization.
12120002980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2940 (or 2938 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 25.
The spelling of 12120002980 in words is "twelve billion, one hundred twenty million, two thousand, nine hundred eighty".
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