Base | Representation |
---|---|
bin | 10011101111101000… |
… | …110001010000100010 |
3 | 2000201111010101211221 |
4 | 103233220301100202 |
5 | 321404234430310 |
6 | 13423404125254 |
7 | 1350235446562 |
oct | 235750612042 |
9 | 60644111757 |
10 | 21200311330 |
11 | 8a9a028760 |
12 | 4137b3682a |
13 | 1ccb27aa23 |
14 | 1051896da2 |
15 | 841318ada |
hex | 4efa31422 |
21200311330 has 16 divisors (see below), whose sum is σ = 41629702464. Its totient is φ = 7709204080.
The previous prime is 21200311303. The next prime is 21200311331. The reversal of 21200311330 is 3311300212.
It is a super-3 number, since 3×212003113303 (a number of 32 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (21200311331) 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, 96364942 + ... + 96365161.
It is an arithmetic number, because the mean of its divisors is an integer number (2601856404).
Almost surely, 221200311330 is an apocalyptic number.
21200311330 is a deficient number, since it is larger than the sum of its proper divisors (20429391134).
21200311330 is a wasteful number, since it uses less digits than its factorization.
21200311330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 192730121.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 21200311330 its reverse (3311300212), we get a palindrome (24511611542).
The spelling of 21200311330 in words is "twenty-one billion, two hundred million, three hundred eleven thousand, three hundred thirty".
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