Base | Representation |
---|---|
bin | 110000101101… |
… | …101010111100 |
3 | 220000210010020 |
4 | 300231222330 |
5 | 11232114410 |
6 | 1133412140 |
7 | 213354156 |
oct | 60555274 |
9 | 26023106 |
10 | 12769980 |
11 | 7232303 |
12 | 433a050 |
13 | 2851602 |
14 | 19a5ad6 |
15 | 11c3a70 |
hex | c2dabc |
12769980 has 48 divisors (see below), whose sum is σ = 35919744. Its totient is φ = 3389760.
The previous prime is 12769973. The next prime is 12769993. The reversal of 12769980 is 8996721.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19539 + ... + 20181.
It is an arithmetic number, because the mean of its divisors is an integer number (748328).
Almost surely, 212769980 is an apocalyptic number.
12769980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12769980 is an abundant number, since it is smaller than the sum of its proper divisors (23149764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12769980 is a wasteful number, since it uses less digits than its factorization.
12769980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 986 (or 984 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 42.
The square root of 12769980 is about 3573.5108786738. The cubic root of 12769980 is about 233.7384029630.
It can be divided in two parts, 127 and 69980, that added together give a palindrome (70107).
The spelling of 12769980 in words is "twelve million, seven hundred sixty-nine thousand, nine hundred eighty".
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