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22020241 = 139158419
BaseRepresentation
bin101010000000…
…0000010010001
31112102202002111
41110000002101
521114121431
62103545321
7355111645
oct124000221
945382074
1022020241
1111480151
12745b241
13473cb39
142cd2c25
151dee7b1
hex1500091

22020241 has 4 divisors (see below), whose sum is σ = 22178800. Its totient is φ = 21861684.

The previous prime is 22020227. The next prime is 22020277. The reversal of 22020241 is 14202022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22020241 - 25 = 22020209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22020211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79071 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (5544700).

Almost surely, 222020241 is an apocalyptic number.

It is an amenable number.

22020241 is a deficient number, since it is larger than the sum of its proper divisors (158559).

22020241 is a wasteful number, since it uses less digits than its factorization.

22020241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158558.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22020241 is about 4692.5729616065. The cubic root of 22020241 is about 280.2898401764.

Adding to 22020241 its reverse (14202022), we get a palindrome (36222263).

The spelling of 22020241 in words is "twenty-two million, twenty thousand, two hundred forty-one".

Divisors: 1 139 158419 22020241