Base | Representation |
---|---|
bin | 101111010100… |
… | …001000011110 |
3 | 212100011000220 |
4 | 233110020132 |
5 | 11133400410 |
6 | 1121502210 |
7 | 210266010 |
oct | 57241036 |
9 | 25304026 |
10 | 12403230 |
11 | 7001804 |
12 | 41a1966 |
13 | 27536b8 |
14 | 190c1b0 |
15 | 1150070 |
hex | bd421e |
12403230 has 32 divisors (see below), whose sum is σ = 34020864. Its totient is φ = 2834976.
The previous prime is 12403199. The next prime is 12403243. The reversal of 12403230 is 3230421.
12403230 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×124032302 = 307680228865800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
12403230 is strictly pandigital in base 8.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29322 + ... + 29741.
It is an arithmetic number, because the mean of its divisors is an integer number (1063152).
Almost surely, 212403230 is an apocalyptic number.
12403230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12403230 is an abundant number, since it is smaller than the sum of its proper divisors (21617634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12403230 is a wasteful number, since it uses less digits than its factorization.
12403230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59080.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 12403230 is about 3521.8219716505. The cubic root of 12403230 is about 231.4790008117.
Adding to 12403230 its reverse (3230421), we get a palindrome (15633651).
The spelling of 12403230 in words is "twelve million, four hundred three thousand, two hundred thirty".
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