| Base | Representation |
|---|---|
| bin | 110000001011… |
| … | …101001011010 |
| 3 | 212202200221200 |
| 4 | 300023221122 |
| 5 | 11213134433 |
| 6 | 1130415030 |
| 7 | 212233650 |
| oct | 60135132 |
| 9 | 25680850 |
| 10 | 12630618 |
| 11 | 7147630 |
| 12 | 4291476 |
| 13 | 2803050 |
| 14 | 196add0 |
| 15 | 1197613 |
| hex | c0ba5a |
12630618 has 96 divisors (see below), whose sum is σ = 36796032. Its totient is φ = 3024000.
The previous prime is 12630617. The next prime is 12630619. The reversal of 12630618 is 81603621.
12630618 is a `hidden beast` number, since 12 + 6 + 30 + 618 = 666.
It is an interprime number because it is at equal distance from previous prime (12630617) and next prime (12630619).
It is a super-2 number, since 2×126306182 = 319065022123848, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12630591 and 12630600.
It is not an unprimeable number, because it can be changed into a prime (12630617) 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 47 ways as a sum of consecutive naturals, for example, 17668 + ... + 18368.
It is an arithmetic number, because the mean of its divisors is an integer number (383292).
Almost surely, 212630618 is an apocalyptic number.
12630618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 12630618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18398016).
12630618 is an abundant number, since it is smaller than the sum of its proper divisors (24165414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12630618 is a wasteful number, since it uses less digits than its factorization.
12630618 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 740 (or 737 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 12630618 is about 3553.9580751607. The cubic root of 12630618 is about 232.8850089870.
The spelling of 12630618 in words is "twelve million, six hundred thirty thousand, six hundred eighteen".
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