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22024145 = 5111330803
BaseRepresentation
bin101010000000…
…0111111010001
31112102221110002
41110000333101
521114233040
62104015345
7355126223
oct124007721
945387402
1022024145
1111483080
127461555
134741850
142cd4413
151e00a15
hex1500fd1

22024145 has 16 divisors (see below), whose sum is σ = 31050432. Its totient is φ = 14784960.

The previous prime is 22024109. The next prime is 22024147. The reversal of 22024145 is 54142022.

It is a happy number.

It is not a de Polignac number, because 22024145 - 26 = 22024081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22024147) 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 15 ways as a sum of consecutive naturals, for example, 14687 + ... + 16116.

It is an arithmetic number, because the mean of its divisors is an integer number (1940652).

Almost surely, 222024145 is an apocalyptic number.

It is an amenable number.

22024145 is a deficient number, since it is larger than the sum of its proper divisors (9026287).

22024145 is a wasteful number, since it uses less digits than its factorization.

22024145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30832.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 22024145 is about 4692.9889196545. The cubic root of 22024145 is about 280.3064035264.

Adding to 22024145 its reverse (54142022), we get a palindrome (76166167).

The spelling of 22024145 in words is "twenty-two million, twenty-four thousand, one hundred forty-five".

Divisors: 1 5 11 13 55 65 143 715 30803 154015 338833 400439 1694165 2002195 4404829 22024145