Base | Representation |
---|---|
bin | 101000101010… |
… | …1011001101010 |
3 | 1111010020100121 |
4 | 1101111121222 |
5 | 20424240242 |
6 | 2040553454 |
7 | 346141201 |
oct | 121253152 |
9 | 44106317 |
10 | 21321322 |
11 | 11043030 |
12 | 718288a |
13 | 4556989 |
14 | 2b90238 |
15 | 1d12667 |
hex | 145566a |
21321322 has 32 divisors (see below), whose sum is σ = 37687680. Its totient is φ = 8944320.
The previous prime is 21321301. The next prime is 21321331. The reversal of 21321322 is 22312312.
It is a plaindrome in base 16.
It is a junction number, because it is equal to n+sod(n) for n = 21321296 and 21321305.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13948 + ... + 15400.
It is an arithmetic number, because the mean of its divisors is an integer number (1177740).
Almost surely, 221321322 is an apocalyptic number.
21321322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
21321322 is a deficient number, since it is larger than the sum of its proper divisors (16366358).
21321322 is a wasteful number, since it uses less digits than its factorization.
21321322 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1518.
The product of its digits is 144, while the sum is 16.
The square root of 21321322 is about 4617.5017054680. The cubic root of 21321322 is about 277.2924487597.
Adding to 21321322 its reverse (22312312), we get a palindrome (43633634).
The spelling of 21321322 in words is "twenty-one million, three hundred twenty-one thousand, three hundred twenty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •