Base | Representation |
---|---|
bin | 101000101011… |
… | …0110110101000 |
3 | 1111010112111222 |
4 | 1101112312220 |
5 | 20424433042 |
6 | 2041041212 |
7 | 346164431 |
oct | 121266650 |
9 | 44115458 |
10 | 21327272 |
11 | 1104754a |
12 | 7186208 |
13 | 45595b5 |
14 | 2b92488 |
15 | 1d142d2 |
hex | 1456da8 |
21327272 has 32 divisors (see below), whose sum is σ = 42369600. Its totient is φ = 10036224.
The previous prime is 21327263. The next prime is 21327289. The reversal of 21327272 is 27272312.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28973 + ... + 29699.
It is an arithmetic number, because the mean of its divisors is an integer number (1324050).
Almost surely, 221327272 is an apocalyptic number.
It is an amenable number.
21327272 is a deficient number, since it is larger than the sum of its proper divisors (21042328).
21327272 is a wasteful number, since it uses less digits than its factorization.
21327272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 945 (or 941 counting only the distinct ones).
The product of its digits is 2352, while the sum is 26.
The square root of 21327272 is about 4618.1459483217. The cubic root of 21327272 is about 277.3182404159.
Adding to 21327272 its reverse (27272312), we get a palindrome (48599584).
It can be divided in two parts, 213 and 27272, that multiplied together give a triangular number (5808936 = T3408).
The spelling of 21327272 in words is "twenty-one million, three hundred twenty-seven thousand, two hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •