Base | Representation |
---|---|
bin | 10011110111011111… |
… | …100010111101111110 |
3 | 2001001200010112022201 |
4 | 103313133202331332 |
5 | 322142010024410 |
6 | 13444433102114 |
7 | 1353425645053 |
oct | 236737427576 |
9 | 61050115281 |
10 | 21332111230 |
11 | 90574699a1 |
12 | 41740b793a |
13 | 201c676831 |
14 | 10651a502a |
15 | 84cba083a |
hex | 4f77e2f7e |
21332111230 has 64 divisors (see below), whose sum is σ = 39615998400. Its totient is φ = 8265793536.
The previous prime is 21332111221. The next prime is 21332111237. The reversal of 21332111230 is 3211123312.
It is a super-2 number, since 2×213321112302 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 21332111198 and 21332111207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21332111237) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47510046 + ... + 47510494.
It is an arithmetic number, because the mean of its divisors is an integer number (618999975).
Almost surely, 221332111230 is an apocalyptic number.
21332111230 is a deficient number, since it is larger than the sum of its proper divisors (18283887170).
21332111230 is a wasteful number, since it uses less digits than its factorization.
21332111230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1165.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 21332111230 its reverse (3211123312), we get a palindrome (24543234542).
The spelling of 21332111230 in words is "twenty-one billion, three hundred thirty-two million, one hundred eleven thousand, two hundred thirty".
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