Base | Representation |
---|---|
bin | 101111001100… |
… | …100010100010 |
3 | 212021120101001 |
4 | 233030202202 |
5 | 11131402010 |
6 | 1121102214 |
7 | 210106231 |
oct | 57144242 |
9 | 25246331 |
10 | 12372130 |
11 | 6a90401 |
12 | 418796a |
13 | 27424b4 |
14 | 1900b18 |
15 | 1145c3a |
hex | bcc8a2 |
12372130 has 8 divisors (see below), whose sum is σ = 22269852. Its totient is φ = 4948848.
The previous prime is 12372127. The next prime is 12372133. The reversal of 12372130 is 3127321.
It is an interprime number because it is at equal distance from previous prime (12372127) and next prime (12372133).
It can be written as a sum of positive squares in 2 ways, for example, as 12313081 + 59049 = 3509^2 + 243^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12372098 and 12372107.
It is not an unprimeable number, because it can be changed into a prime (12372133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618597 + ... + 618616.
Almost surely, 212372130 is an apocalyptic number.
12372130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12372130 is a deficient number, since it is larger than the sum of its proper divisors (9897722).
12372130 is a wasteful number, since it uses less digits than its factorization.
12372130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1237220.
The product of its (nonzero) digits is 252, while the sum is 19.
The square root of 12372130 is about 3517.4038721762. The cubic root of 12372130 is about 231.2853678556.
Adding to 12372130 its reverse (3127321), we get a palindrome (15499451).
The spelling of 12372130 in words is "twelve million, three hundred seventy-two thousand, one hundred thirty".
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