Base | Representation |
---|---|
bin | 110000110010… |
… | …100000101111 |
3 | 220001210022120 |
4 | 300302200233 |
5 | 11233233212 |
6 | 1134044023 |
7 | 213466032 |
oct | 60624057 |
9 | 26053276 |
10 | 12789807 |
11 | 7246198 |
12 | 4349613 |
13 | 285a644 |
14 | 19ad019 |
15 | 11c988c |
hex | c3282f |
12789807 has 8 divisors (see below), whose sum is σ = 17176320. Its totient is φ = 8464920.
The previous prime is 12789773. The next prime is 12789811. The reversal of 12789807 is 70898721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12789807 - 212 = 12785711 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12789857) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14919 + ... + 15752.
It is an arithmetic number, because the mean of its divisors is an integer number (2147040).
Almost surely, 212789807 is an apocalyptic number.
12789807 is a deficient number, since it is larger than the sum of its proper divisors (4386513).
12789807 is a wasteful number, since it uses less digits than its factorization.
12789807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30813.
The product of its (nonzero) digits is 56448, while the sum is 42.
The square root of 12789807 is about 3576.2839652354. The cubic root of 12789807 is about 233.8593098327.
The spelling of 12789807 in words is "twelve million, seven hundred eighty-nine thousand, eight hundred seven".
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