Base | Representation |
---|---|
bin | 1001100011110001010000… |
… | …01011110110110101001000 |
3 | 2202102111220221210222012212 |
4 | 10301320220023312311020 |
5 | 10223343430000042212 |
6 | 112412322234524252 |
7 | 4266443150115152 |
oct | 461705013666510 |
9 | 82374827728185 |
10 | 21020244143432 |
11 | 67746a9905586 |
12 | 2435a45296688 |
13 | b9627b6c8c71 |
14 | 52955717dad2 |
15 | 266bb89e1e22 |
hex | 131e282f6d48 |
21020244143432 has 48 divisors (see below), whose sum is σ = 41604904100160. Its totient is φ = 9954946336608.
The previous prime is 21020244143323. The next prime is 21020244143441. The reversal of 21020244143432 is 23434144202012.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13612013 + ... + 15077379.
It is an arithmetic number, because the mean of its divisors is an integer number (866768835420).
Almost surely, 221020244143432 is an apocalyptic number.
It is an amenable number.
21020244143432 is a deficient number, since it is larger than the sum of its proper divisors (20584659956728).
21020244143432 is a wasteful number, since it uses less digits than its factorization.
21020244143432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1470378 (or 1470355 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 32.
Adding to 21020244143432 its reverse (23434144202012), we get a palindrome (44454388345444).
The spelling of 21020244143432 in words is "twenty-one trillion, twenty billion, two hundred forty-four million, one hundred forty-three thousand, four hundred thirty-two".
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