Base | Representation |
---|---|
bin | 110000110110… |
… | …011001000000 |
3 | 220002121010001 |
4 | 300312121000 |
5 | 11234240241 |
6 | 1134245344 |
7 | 213563251 |
oct | 60663100 |
9 | 26077101 |
10 | 12805696 |
11 | 7257122 |
12 | 4356854 |
13 | 2864947 |
14 | 19b4b28 |
15 | 11ce431 |
hex | c36640 |
12805696 has 28 divisors (see below), whose sum is σ = 26751280. Its totient is φ = 6065280.
The previous prime is 12805693. The next prime is 12805699. The reversal of 12805696 is 69650821.
12805696 = T265 + T266 + ... + T456.
It is an interprime number because it is at equal distance from previous prime (12805693) and next prime (12805699).
It is a super-3 number, since 3×128056963 (a number of 22 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (12805691) 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, 4050 + ... + 6481.
Almost surely, 212805696 is an apocalyptic number.
12805696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
12805696 is an abundant number, since it is smaller than the sum of its proper divisors (13945584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12805696 is a wasteful number, since it uses less digits than its factorization.
12805696 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10562 (or 10552 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 37.
The square root of 12805696 is about 3578.5047156599. The cubic root of 12805696 is about 233.9561122552.
The spelling of 12805696 in words is "twelve million, eight hundred five thousand, six hundred ninety-six".
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