Base | Representation |
---|---|
bin | 1100011001111110010… |
… | …1110100101011111110 |
3 | 202101010110101000021000 |
4 | 3012133211310223332 |
5 | 11442443001434412 |
6 | 241524434351130 |
7 | 21253403450043 |
oct | 3063745645376 |
9 | 671113330230 |
10 | 213130889982 |
11 | 8242a91619a |
12 | 3538112b4a6 |
13 | 1713785b76a |
14 | a45bd9d1ca |
15 | 582612d4dc |
hex | 319f974afe |
213130889982 has 32 divisors (see below), whose sum is σ = 494216559360. Its totient is φ = 67954776120.
The previous prime is 213130889981. The next prime is 213130889987. The reversal of 213130889982 is 289988031312.
It is a super-3 number, since 3×2131308899823 (a number of 35 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213130889981) 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, 85800244 + ... + 85802727.
It is an arithmetic number, because the mean of its divisors is an integer number (15444267480).
Almost surely, 2213130889982 is an apocalyptic number.
213130889982 is an abundant number, since it is smaller than the sum of its proper divisors (281085669378).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213130889982 is a wasteful number, since it uses less digits than its factorization.
213130889982 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171603005 (or 171602999 counting only the distinct ones).
The product of its (nonzero) digits is 1492992, while the sum is 54.
The spelling of 213130889982 in words is "two hundred thirteen billion, one hundred thirty million, eight hundred eighty-nine thousand, nine hundred eighty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •