Base | Representation |
---|---|
bin | 101110101001… |
… | …111011100010 |
3 | 212000100220200 |
4 | 232221323202 |
5 | 11112332440 |
6 | 1114050030 |
7 | 205646025 |
oct | 56517342 |
9 | 25010820 |
10 | 12230370 |
11 | 69a3949 |
12 | 4119916 |
13 | 26c2b09 |
14 | 18a51bc |
15 | 1118c30 |
hex | ba9ee2 |
12230370 has 24 divisors (see below), whose sum is σ = 31799196. Its totient is φ = 3261408.
The previous prime is 12230369. The next prime is 12230371. The reversal of 12230370 is 7303221.
It is an interprime number because it is at equal distance from previous prime (12230369) and next prime (12230371).
It can be written as a sum of positive squares in 2 ways, for example, as 11108889 + 1121481 = 3333^2 + 1059^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (12230371) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67857 + ... + 68036.
Almost surely, 212230370 is an apocalyptic number.
12230370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12230370 is an abundant number, since it is smaller than the sum of its proper divisors (19568826).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12230370 is a wasteful number, since it uses less digits than its factorization.
12230370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 135906 (or 135903 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 18.
The square root of 12230370 is about 3497.1945899535. The cubic root of 12230370 is about 230.3986156239.
Adding to 12230370 its reverse (7303221), we get a palindrome (19533591).
The spelling of 12230370 in words is "twelve million, two hundred thirty thousand, three hundred seventy".
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