Base | Representation |
---|---|
bin | 100110100100… |
… | …1001100010101 |
3 | 1102001102101102 |
4 | 1031021030111 |
5 | 20134111431 |
6 | 2001235445 |
7 | 333614300 |
oct | 115111425 |
9 | 42042342 |
10 | 20222741 |
11 | 10462710 |
12 | 6932b85 |
13 | 4260926 |
14 | 2985b37 |
15 | 1b96dcb |
hex | 1349315 |
20222741 has 24 divisors (see below), whose sum is σ = 27184896. Its totient is φ = 14824320.
The previous prime is 20222731. The next prime is 20222747. The reversal of 20222741 is 14722202.
It is a happy number.
It is not a de Polignac number, because 20222741 - 210 = 20221717 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20222747) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8060 + ... + 10266.
It is an arithmetic number, because the mean of its divisors is an integer number (1132704).
Almost surely, 220222741 is an apocalyptic number.
It is an amenable number.
20222741 is a deficient number, since it is larger than the sum of its proper divisors (6962155).
20222741 is a wasteful number, since it uses less digits than its factorization.
20222741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2249 (or 2242 counting only the distinct ones).
The product of its (nonzero) digits is 448, while the sum is 20.
The square root of 20222741 is about 4496.9702022584. The cubic root of 20222741 is about 272.4457305725.
Adding to 20222741 its reverse (14722202), we get a palindrome (34944943).
The spelling of 20222741 in words is "twenty million, two hundred twenty-two thousand, seven hundred forty-one".
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