Base | Representation |
---|---|
bin | 101111010101… |
… | …010000010110 |
3 | 212100101100021 |
4 | 233111100112 |
5 | 11134022310 |
6 | 1121535354 |
7 | 210315301 |
oct | 57252026 |
9 | 25311307 |
10 | 12407830 |
11 | 7005206 |
12 | 41a455a |
13 | 2755816 |
14 | 190db38 |
15 | 11515da |
hex | bd5416 |
12407830 has 32 divisors (see below), whose sum is σ = 23351328. Its totient is φ = 4742400.
The previous prime is 12407809. The next prime is 12407831. The reversal of 12407830 is 3870421.
12407830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 12407795 and 12407804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12407831) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21445 + ... + 22015.
It is an arithmetic number, because the mean of its divisors is an integer number (729729).
Almost surely, 212407830 is an apocalyptic number.
12407830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12407830 is a deficient number, since it is larger than the sum of its proper divisors (10943498).
12407830 is a wasteful number, since it uses less digits than its factorization.
12407830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 672.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 12407830 is about 3522.4749821681. The cubic root of 12407830 is about 231.5076135681.
The spelling of 12407830 in words is "twelve million, four hundred seven thousand, eight hundred thirty".
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