Base | Representation |
---|---|
bin | 101111010000… |
… | …101101101110 |
3 | 212022102211101 |
4 | 233100231232 |
5 | 11132423410 |
6 | 1121313314 |
7 | 210210130 |
oct | 57205556 |
9 | 25272741 |
10 | 12389230 |
11 | 6aa2237 |
12 | 419583a |
13 | 274a209 |
14 | 1907050 |
15 | 114ad3a |
hex | bd0b6e |
12389230 has 16 divisors (see below), whose sum is σ = 25486560. Its totient is φ = 4247712.
The previous prime is 12389219. The next prime is 12389239. The reversal of 12389230 is 3298321.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12389239) 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, 88425 + ... + 88564.
It is an arithmetic number, because the mean of its divisors is an integer number (1592910).
Almost surely, 212389230 is an apocalyptic number.
12389230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12389230 is an abundant number, since it is smaller than the sum of its proper divisors (13097330).
12389230 is a wasteful number, since it uses less digits than its factorization.
12389230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 177003.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 12389230 is about 3519.8338028947. The cubic root of 12389230 is about 231.3918749561.
Subtracting from 12389230 its reverse (3298321), we obtain a palindrome (9090909).
The spelling of 12389230 in words is "twelve million, three hundred eighty-nine thousand, two hundred thirty".
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