Base | Representation |
---|---|
bin | 101111100111… |
… | …010101001110 |
3 | 212111010220111 |
4 | 233213111032 |
5 | 11143404440 |
6 | 1123310234 |
7 | 211044202 |
oct | 57472516 |
9 | 25433814 |
10 | 12481870 |
11 | 70558a5 |
12 | 421b37a |
13 | 278042b |
14 | 192cb02 |
15 | 11684ea |
hex | be754e |
12481870 has 16 divisors (see below), whose sum is σ = 23444640. Its totient is φ = 4775584.
The previous prime is 12481831. The next prime is 12481873. The reversal of 12481870 is 7818421.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12481873) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26905 + ... + 27364.
It is an arithmetic number, because the mean of its divisors is an integer number (1465290).
Almost surely, 212481870 is an apocalyptic number.
12481870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12481870 is a deficient number, since it is larger than the sum of its proper divisors (10962770).
12481870 is a wasteful number, since it uses less digits than its factorization.
12481870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54299.
The product of its (nonzero) digits is 3584, while the sum is 31.
The square root of 12481870 is about 3532.9690063741. The cubic root of 12481870 is about 231.9671847166.
The spelling of 12481870 in words is "twelve million, four hundred eighty-one thousand, eight hundred seventy".
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