Base | Representation |
---|---|
bin | 110001001001… |
… | …110111110111 |
3 | 220020122120120 |
4 | 301021313313 |
5 | 11244313440 |
6 | 1140103023 |
7 | 214345020 |
oct | 61116767 |
9 | 26218516 |
10 | 12885495 |
11 | 7301077 |
12 | 4394a73 |
13 | 289206c |
14 | 19d5c47 |
15 | 11e7dd0 |
hex | c49df7 |
12885495 has 16 divisors (see below), whose sum is σ = 23562240. Its totient is φ = 5890464.
The previous prime is 12885493. The next prime is 12885511. The reversal of 12885495 is 59458821.
It is a happy number.
It is not a de Polignac number, because 12885495 - 21 = 12885493 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12885493) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61255 + ... + 61464.
It is an arithmetic number, because the mean of its divisors is an integer number (1472640).
Almost surely, 212885495 is an apocalyptic number.
12885495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12885495 is a deficient number, since it is larger than the sum of its proper divisors (10676745).
12885495 is a wasteful number, since it uses less digits than its factorization.
12885495 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122734.
The product of its digits is 115200, while the sum is 42.
The square root of 12885495 is about 3589.6371682943. The cubic root of 12885495 is about 234.4410739932.
The spelling of 12885495 in words is "twelve million, eight hundred eighty-five thousand, four hundred ninety-five".
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