Base | Representation |
---|---|
bin | 110001100001… |
… | …010010100010 |
3 | 220102112010222 |
4 | 301201102202 |
5 | 11310401120 |
6 | 1142123042 |
7 | 215224451 |
oct | 61412242 |
9 | 26375128 |
10 | 12981410 |
11 | 7367142 |
12 | 4420482 |
13 | 28c6910 |
14 | 1a1cb98 |
15 | 1216525 |
hex | c614a2 |
12981410 has 32 divisors (see below), whose sum is σ = 25592112. Its totient is φ = 4711680.
The previous prime is 12981403. The next prime is 12981431. The reversal of 12981410 is 1418921.
It can be written as a sum of positive squares in 8 ways, for example, as 100489 + 12880921 = 317^2 + 3589^2 .
It is a Harshad number since it is a multiple of its sum of digits (26).
It is an alternating number because its digits alternate between odd and even.
It is a self number, because there is not a number n which added to its sum of digits gives 12981410.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7112 + ... + 8748.
Almost surely, 212981410 is an apocalyptic number.
12981410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12981410 is a deficient number, since it is larger than the sum of its proper divisors (12610702).
12981410 is a wasteful number, since it uses less digits than its factorization.
12981410 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1718.
The product of its (nonzero) digits is 576, while the sum is 26.
The square root of 12981410 is about 3602.9723840185. The cubic root of 12981410 is about 235.0213350179.
The spelling of 12981410 in words is "twelve million, nine hundred eighty-one thousand, four hundred ten".
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