Base | Representation |
---|---|
bin | 10011110111011111… |
… | …001111011011110011 |
3 | 2001001122222110120100 |
4 | 103313133033123303 |
5 | 322141444444334 |
6 | 13444431243443 |
7 | 1353425162562 |
oct | 236737173363 |
9 | 61048873510 |
10 | 21332031219 |
11 | 9057414874 |
12 | 4174079583 |
13 | 201c6492a5 |
14 | 1065183bd9 |
15 | 84cb86c99 |
hex | 4f77cf6f3 |
21332031219 has 12 divisors (see below), whose sum is σ = 30814875000. Its totient is φ = 14220458304.
The previous prime is 21332031173. The next prime is 21332031221. The reversal of 21332031219 is 91213023312.
21332031219 is a `hidden beast` number, since 2 + 1 + 332 + 0 + 312 + 19 = 666.
It is not a de Polignac number, because 21332031219 - 215 = 21331998451 is a prime.
It is a super-2 number, since 2×213320312192 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 21332031192 and 21332031201.
It is not an unprimeable number, because it can be changed into a prime (21332031269) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96907 + ... + 228155.
It is an arithmetic number, because the mean of its divisors is an integer number (2567906250).
Almost surely, 221332031219 is an apocalyptic number.
21332031219 is a deficient number, since it is larger than the sum of its proper divisors (9482843781).
21332031219 is a wasteful number, since it uses less digits than its factorization.
21332031219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 149314 (or 149311 counting only the distinct ones).
The product of its (nonzero) digits is 1944, while the sum is 27.
The spelling of 21332031219 in words is "twenty-one billion, three hundred thirty-two million, thirty-one thousand, two hundred nineteen".
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