Base | Representation |
---|---|
bin | 10011110101101001… |
… | …010010110011011110 |
3 | 2000222111210121102012 |
4 | 103311221102303132 |
5 | 322111041041110 |
6 | 13441404431222 |
7 | 1352601315302 |
oct | 236551226336 |
9 | 60874717365 |
10 | 21301112030 |
11 | 9040a16820 |
12 | 4165848512 |
13 | 2016111b03 |
14 | 1061015d02 |
15 | 84a0ca905 |
hex | 4f5a52cde |
21301112030 has 96 divisors (see below), whose sum is σ = 44583944832. Its totient is φ = 7265446400.
The previous prime is 21301112011. The next prime is 21301112069. The reversal of 21301112030 is 3021110312.
It is a super-2 number, since 2×213011120302 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 21301111996 and 21301112014.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11030165 + ... + 11032095.
It is an arithmetic number, because the mean of its divisors is an integer number (464416092).
Almost surely, 221301112030 is an apocalyptic number.
21301112030 is an abundant number, since it is smaller than the sum of its proper divisors (23282832802).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21301112030 is a wasteful number, since it uses less digits than its factorization.
21301112030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2330 (or 2313 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 21301112030 its reverse (3021110312), we get a palindrome (24322222342).
It can be divided in two parts, 21301 and 112030, that added together give a palindrome (133331).
The spelling of 21301112030 in words is "twenty-one billion, three hundred one million, one hundred twelve thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •