Base | Representation |
---|---|
bin | 10111011100000000… |
… | …10010010011101011 |
3 | 1012110221002222011002 |
4 | 23232000102103223 |
5 | 201232221040422 |
6 | 5440333025215 |
7 | 623550424154 |
oct | 135600222353 |
9 | 35427088132 |
10 | 12582986987 |
11 | 537784a3aa |
12 | 253202520b |
13 | 1256b8473c |
14 | 87521692b |
15 | 4d9a2c692 |
hex | 2ee0124eb |
12582986987 has 8 divisors (see below), whose sum is σ = 13701982800. Its totient is φ = 11509664544.
The previous prime is 12582986903. The next prime is 12582986989. The reversal of 12582986987 is 78968928521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12582986987 - 224 = 12566209771 is a prime.
It is a super-3 number, since 3×125829869873 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12582986989) 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, 11417768 + ... + 11418869.
It is an arithmetic number, because the mean of its divisors is an integer number (1712747850).
Almost surely, 212582986987 is an apocalyptic number.
12582986987 is a deficient number, since it is larger than the sum of its proper divisors (1118995813).
12582986987 is a wasteful number, since it uses less digits than its factorization.
12582986987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22836685.
The product of its digits is 34836480, while the sum is 65.
The spelling of 12582986987 in words is "twelve billion, five hundred eighty-two million, nine hundred eighty-six thousand, nine hundred eighty-seven".
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