Base | Representation |
---|---|
bin | 110000001011… |
… | …110010111110 |
3 | 212202201210100 |
4 | 300023302332 |
5 | 11213144410 |
6 | 1130421530 |
7 | 212235513 |
oct | 60136276 |
9 | 25681710 |
10 | 12631230 |
11 | 7148037 |
12 | 42918a6 |
13 | 2803401 |
14 | 196b30a |
15 | 11978c0 |
hex | c0bcbe |
12631230 has 48 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 3349824.
The previous prime is 12631193. The next prime is 12631237. The reversal of 12631230 is 3213621.
12631230 is a `hidden beast` number, since 1 + 2 + 631 + 2 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12631237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26131 + ... + 26609.
It is an arithmetic number, because the mean of its divisors is an integer number (687960).
Almost surely, 212631230 is an apocalyptic number.
12631230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12631230 is an abundant number, since it is smaller than the sum of its proper divisors (20390850).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12631230 is a wasteful number, since it uses less digits than its factorization.
12631230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 785 (or 782 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 12631230 is about 3554.0441753023. The cubic root of 12631230 is about 232.8887703053. Note that the first 3 decimals are identical.
Adding to 12631230 its reverse (3213621), we get a palindrome (15844851).
The spelling of 12631230 in words is "twelve million, six hundred thirty-one thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •