Base | Representation |
---|---|
bin | 110001100011… |
… | …001110111010 |
3 | 220102221001210 |
4 | 301203032322 |
5 | 11311124440 |
6 | 1142223550 |
7 | 215256612 |
oct | 61431672 |
9 | 26387053 |
10 | 12989370 |
11 | 7372119 |
12 | 4424bb6 |
13 | 28ca424 |
14 | 1a21a42 |
15 | 1218a80 |
hex | c633ba |
12989370 has 16 divisors (see below), whose sum is σ = 31174560. Its totient is φ = 3463824.
The previous prime is 12989351. The next prime is 12989387. The reversal of 12989370 is 7398921.
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 7 ways as a sum of consecutive naturals, for example, 216460 + ... + 216519.
It is an arithmetic number, because the mean of its divisors is an integer number (1948410).
Almost surely, 212989370 is an apocalyptic number.
12989370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12989370 is an abundant number, since it is smaller than the sum of its proper divisors (18185190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12989370 is a wasteful number, since it uses less digits than its factorization.
12989370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 432989.
The product of its (nonzero) digits is 27216, while the sum is 39.
The square root of 12989370 is about 3604.0768582260. The cubic root of 12989370 is about 235.0693623529.
The spelling of 12989370 in words is "twelve million, nine hundred eighty-nine thousand, three hundred seventy".
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