Base | Representation |
---|---|
bin | 110000110100… |
… | …010100011111 |
3 | 220002011110221 |
4 | 300310110133 |
5 | 11234002330 |
6 | 1134142211 |
7 | 213526444 |
oct | 60642437 |
9 | 26064427 |
10 | 12797215 |
11 | 7250812 |
12 | 4351967 |
13 | 2860b22 |
14 | 19b19cb |
15 | 11cbb7a |
hex | c3451f |
12797215 has 8 divisors (see below), whose sum is σ = 15377040. Its totient is φ = 10224192.
The previous prime is 12797173. The next prime is 12797219. The reversal of 12797215 is 51279721.
12797215 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12797215 - 27 = 12797087 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12797219) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4512 + ... + 6778.
It is an arithmetic number, because the mean of its divisors is an integer number (1922130).
Almost surely, 212797215 is an apocalyptic number.
12797215 is a deficient number, since it is larger than the sum of its proper divisors (2579825).
12797215 is a wasteful number, since it uses less digits than its factorization.
12797215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3401.
The product of its digits is 8820, while the sum is 34.
The square root of 12797215 is about 3577.3195272438. The cubic root of 12797215 is about 233.9044524319.
The spelling of 12797215 in words is "twelve million, seven hundred ninety-seven thousand, two hundred fifteen".
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