Base | Representation |
---|---|
bin | 10011000010000101… |
… | …11001110111111111 |
3 | 222101010010112201110 |
4 | 21201002321313333 |
5 | 131411312222022 |
6 | 4405533013103 |
7 | 511133203602 |
oct | 114102716777 |
9 | 28333115643 |
10 | 10218085887 |
11 | 4373930189 |
12 | 1b92024193 |
13 | c6ac37889 |
14 | 6cd0d2339 |
15 | 3ec0db00c |
hex | 2610b9dff |
10218085887 has 16 divisors (see below), whose sum is σ = 13960477440. Its totient is φ = 6643972800.
The previous prime is 10218085877. The next prime is 10218085919. The reversal of 10218085887 is 78858081201.
It is not a de Polignac number, because 10218085887 - 212 = 10218081791 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10218085847) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499062 + ... + 519132.
It is an arithmetic number, because the mean of its divisors is an integer number (872529840).
Almost surely, 210218085887 is an apocalyptic number.
10218085887 is a deficient number, since it is larger than the sum of its proper divisors (3742391553).
10218085887 is a wasteful number, since it uses less digits than its factorization.
10218085887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24254.
The product of its (nonzero) digits is 286720, while the sum is 48.
The spelling of 10218085887 in words is "ten billion, two hundred eighteen million, eighty-five thousand, eight hundred eighty-seven".
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