Base | Representation |
---|---|
bin | 100110111111… |
… | …000111010010 |
3 | 201020020012000 |
4 | 212333013102 |
5 | 10104014421 |
6 | 1003014430 |
7 | 152603610 |
oct | 46770722 |
9 | 21206160 |
10 | 10219986 |
11 | 5850477 |
12 | 350a416 |
13 | 216aa3a |
14 | 15006b0 |
15 | d6d226 |
hex | 9bf1d2 |
10219986 has 64 divisors (see below), whose sum is σ = 27340800. Its totient is φ = 2764368.
The previous prime is 10219973. The next prime is 10219991. The reversal of 10219986 is 68991201.
It is a super-2 number, since 2×102199862 = 208896227680392, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 10219986.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6471 + ... + 7893.
It is an arithmetic number, because the mean of its divisors is an integer number (427200).
Almost surely, 210219986 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 10219986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13670400).
10219986 is an abundant number, since it is smaller than the sum of its proper divisors (17120814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10219986 is a wasteful number, since it uses less digits than its factorization.
10219986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1460 (or 1454 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 36.
The square root of 10219986 is about 3196.8712829890. The cubic root of 10219986 is about 217.0118421762.
The spelling of 10219986 in words is "ten million, two hundred nineteen thousand, nine hundred eighty-six".
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