Base | Representation |
---|---|
bin | 10110110101100110… |
… | …10011001000011110 |
3 | 1011122110212221210201 |
4 | 23122303103020132 |
5 | 200102232043030 |
6 | 5344343454114 |
7 | 612556132315 |
oct | 133263231036 |
9 | 34573787721 |
10 | 12260815390 |
11 | 5221a0208a |
12 | 246215733a |
13 | 12051c2c65 |
14 | 84451127c |
15 | 4bb5de2ca |
hex | 2dacd321e |
12260815390 has 16 divisors (see below), whose sum is σ = 23029010208. Its totient is φ = 4691094496.
The previous prime is 12260815339. The next prime is 12260815397. The reversal of 12260815390 is 9351806221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12260815397) 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, 26653717 + ... + 26654176.
It is an arithmetic number, because the mean of its divisors is an integer number (1439313138).
Almost surely, 212260815390 is an apocalyptic number.
12260815390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12260815390 is a deficient number, since it is larger than the sum of its proper divisors (10768194818).
12260815390 is a wasteful number, since it uses less digits than its factorization.
12260815390 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53307923.
The product of its (nonzero) digits is 25920, while the sum is 37.
The spelling of 12260815390 in words is "twelve billion, two hundred sixty million, eight hundred fifteen thousand, three hundred ninety".
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