Base | Representation |
---|---|
bin | 101111011000… |
… | …111101110110 |
3 | 212101011012020 |
4 | 233120331312 |
5 | 11140014110 |
6 | 1122134010 |
7 | 210410514 |
oct | 57307566 |
9 | 25334166 |
10 | 12423030 |
11 | 7015674 |
12 | 41b1306 |
13 | 275c709 |
14 | 19154b4 |
15 | 1155d70 |
hex | bd8f76 |
12423030 has 16 divisors (see below), whose sum is σ = 29815344. Its totient is φ = 3312800.
The previous prime is 12423011. The next prime is 12423031. The reversal of 12423030 is 3032421.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12423031) 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, 207021 + ... + 207080.
It is an arithmetic number, because the mean of its divisors is an integer number (1863459).
Almost surely, 212423030 is an apocalyptic number.
12423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12423030 is an abundant number, since it is smaller than the sum of its proper divisors (17392314).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12423030 is a wasteful number, since it uses less digits than its factorization.
12423030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414111.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 12423030 is about 3524.6318956736. The cubic root of 12423030 is about 231.6021098062.
Adding to 12423030 its reverse (3032421), we get a palindrome (15455451).
The spelling of 12423030 in words is "twelve million, four hundred twenty-three thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •