Base | Representation |
---|---|
bin | 101111001100… |
… | …000011011100 |
3 | 212021110122100 |
4 | 233030003130 |
5 | 11131321030 |
6 | 1121045100 |
7 | 210100356 |
oct | 57140334 |
9 | 25243570 |
10 | 12370140 |
11 | 6a89962 |
12 | 4186790 |
13 | 2741613 |
14 | 19000d6 |
15 | 1145360 |
hex | bcc0dc |
12370140 has 72 divisors (see below), whose sum is σ = 39508560. Its totient is φ = 3124224.
The previous prime is 12370109. The next prime is 12370157. The reversal of 12370140 is 4107321.
12370140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1612 + ... + 5228.
It is an arithmetic number, because the mean of its divisors is an integer number (548730).
Almost surely, 212370140 is an apocalyptic number.
12370140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12370140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19754280).
12370140 is an abundant number, since it is smaller than the sum of its proper divisors (27138420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12370140 is a wasteful number, since it uses less digits than its factorization.
12370140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3651 (or 3646 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 12370140 is about 3517.1209817122. The cubic root of 12370140 is about 231.2729667961.
Adding to 12370140 its reverse (4107321), we get a palindrome (16477461).
The spelling of 12370140 in words is "twelve million, three hundred seventy thousand, one hundred forty".
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