Base | Representation |
---|---|
bin | 110000011010… |
… | …010100100010 |
3 | 212212202101202 |
4 | 300122110202 |
5 | 11222100342 |
6 | 1132001202 |
7 | 212604122 |
oct | 60322442 |
9 | 25782352 |
10 | 12690722 |
11 | 7188800 |
12 | 4300202 |
13 | 2824505 |
14 | 1984c82 |
15 | 11aa332 |
hex | c1a522 |
12690722 has 18 divisors (see below), whose sum is σ = 21015729. Its totient is φ = 5743320.
The previous prime is 12690697. The next prime is 12690731. The reversal of 12690722 is 22709621.
It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 3136441 = 3091^2 + 1771^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=2519.
It is a super-2 number, since 2×126907222 = 322108849762568, which contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55304 + ... + 55532.
Almost surely, 212690722 is an apocalyptic number.
12690722 is a deficient number, since it is larger than the sum of its proper divisors (8325007).
12690722 is an equidigital number, since it uses as much as digits as its factorization.
12690722 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 482 (or 242 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 29.
The square root of 12690722 is about 3562.4039636178. The cubic root of 12690722 is about 233.2538264263.
The spelling of 12690722 in words is "twelve million, six hundred ninety thousand, seven hundred twenty-two".
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