Base | Representation |
---|---|
bin | 10011110111011111… |
… | …100111101000000111 |
3 | 2001001200011111111102 |
4 | 103313133213220013 |
5 | 322142011132221 |
6 | 13444433330315 |
7 | 1353426054512 |
oct | 236737475007 |
9 | 61050144442 |
10 | 21332130311 |
11 | 9057482268 |
12 | 417410699b |
13 | 201c68241b |
14 | 10651abd79 |
15 | 84cba630b |
hex | 4f77e7a07 |
21332130311 has 8 divisors (see below), whose sum is σ = 22001713344. Its totient is φ = 20671535200.
The previous prime is 21332130307. The next prime is 21332130341. The reversal of 21332130311 is 11303123312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 21332130311 - 22 = 21332130307 is a prime.
It is a super-3 number, since 3×213321303113 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21332130341) 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, 2242160 + ... + 2251653.
It is an arithmetic number, because the mean of its divisors is an integer number (2750214168).
Almost surely, 221332130311 is an apocalyptic number.
21332130311 is a deficient number, since it is larger than the sum of its proper divisors (669583033).
21332130311 is a wasteful number, since it uses less digits than its factorization.
21332130311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4493961.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 21332130311 its reverse (11303123312), we get a palindrome (32635253623).
The spelling of 21332130311 in words is "twenty-one billion, three hundred thirty-two million, one hundred thirty thousand, three hundred eleven".
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