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20222741 = 7211172207
BaseRepresentation
bin100110100100…
…1001100010101
31102001102101102
41031021030111
520134111431
62001235445
7333614300
oct115111425
942042342
1020222741
1110462710
126932b85
134260926
142985b37
151b96dcb
hex1349315

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".

Divisors: 1 7 11 17 49 77 119 187 539 833 1309 2207 9163 15449 24277 37519 108143 169939 262633 412709 1189573 1838431 2888963 20222741