Base | Representation |
---|---|
bin | 110000100111… |
… | …000010011000 |
3 | 212222101211212 |
4 | 300213002120 |
5 | 11230232213 |
6 | 1133042252 |
7 | 213212021 |
oct | 60470230 |
9 | 25871755 |
10 | 12742808 |
11 | 7213951 |
12 | 4326388 |
13 | 2842130 |
14 | 1999c48 |
15 | 11ba9a8 |
hex | c27098 |
12742808 has 16 divisors (see below), whose sum is σ = 25730880. Its totient is φ = 5881248.
The previous prime is 12742801. The next prime is 12742811. The reversal of 12742808 is 80824721.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12742801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61160 + ... + 61367.
It is an arithmetic number, because the mean of its divisors is an integer number (1608180).
Almost surely, 212742808 is an apocalyptic number.
It is an amenable number.
12742808 is an abundant number, since it is smaller than the sum of its proper divisors (12988072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12742808 is a wasteful number, since it uses less digits than its factorization.
12742808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122546 (or 122542 counting only the distinct ones).
The product of its (nonzero) digits is 7168, while the sum is 32.
The square root of 12742808 is about 3569.7069907767. The cubic root of 12742808 is about 233.5725021583.
The spelling of 12742808 in words is "twelve million, seven hundred forty-two thousand, eight hundred eight".
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