Base | Representation |
---|---|
bin | 101111011010… |
… | …111001001000 |
3 | 212101120000110 |
4 | 233122321020 |
5 | 11140242140 |
6 | 1122234320 |
7 | 210442515 |
oct | 57327110 |
9 | 25346013 |
10 | 12430920 |
11 | 7020597 |
12 | 41b59a0 |
13 | 2763198 |
14 | 191830c |
15 | 1158380 |
hex | bdae48 |
12430920 has 32 divisors (see below), whose sum is σ = 37293120. Its totient is φ = 3314880.
The previous prime is 12430903. The next prime is 12430931. The reversal of 12430920 is 2903421.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51676 + ... + 51915.
It is an arithmetic number, because the mean of its divisors is an integer number (1165410).
Almost surely, 212430920 is an apocalyptic number.
12430920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12430920 is an abundant number, since it is smaller than the sum of its proper divisors (24862200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12430920 is a wasteful number, since it uses less digits than its factorization.
12430920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103605 (or 103601 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
The square root of 12430920 is about 3525.7509838331. The cubic root of 12430920 is about 231.6511304270.
The spelling of 12430920 in words is "twelve million, four hundred thirty thousand, nine hundred twenty".
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