Base | Representation |
---|---|
bin | 101111011000… |
… | …111111011010 |
3 | 212101011022221 |
4 | 233120333122 |
5 | 11140020010 |
6 | 1122134254 |
7 | 210411016 |
oct | 57307732 |
9 | 25334287 |
10 | 12423130 |
11 | 7015755 |
12 | 41b138a |
13 | 275c785 |
14 | 1915546 |
15 | 1155dda |
hex | bd8fda |
12423130 has 32 divisors (see below), whose sum is σ = 23151744. Its totient is φ = 4796736.
The previous prime is 12423121. The next prime is 12423133. The reversal of 12423130 is 3132421.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (12423133) 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, 71724 + ... + 71896.
It is an arithmetic number, because the mean of its divisors is an integer number (723492).
Almost surely, 212423130 is an apocalyptic number.
12423130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12423130 is a deficient number, since it is larger than the sum of its proper divisors (10728614).
12423130 is a wasteful number, since it uses less digits than its factorization.
12423130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 390.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 12423130 is about 3524.6460815236. The cubic root of 12423130 is about 231.6027312367.
Adding to 12423130 its reverse (3132421), we get a palindrome (15555551).
The spelling of 12423130 in words is "twelve million, four hundred twenty-three thousand, one hundred thirty".
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