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22020323 = 1331101541
BaseRepresentation
bin101010000000…
…0000011100011
31112102202012112
41110000003203
521114122243
62103545535
7355112123
oct124000343
945382175
1022020323
1111480216
12745b2ab
13473cba0
142cd2c83
151dee818
hex15000e3

22020323 has 16 divisors (see below), whose sum is σ = 24767232. Its totient is φ = 19440000.

The previous prime is 22020319. The next prime is 22020337. The reversal of 22020323 is 32302022.

It is a cyclic number.

It is not a de Polignac number, because 22020323 - 22 = 22020319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22020298 and 22020307.

It is not an unprimeable number, because it can be changed into a prime (22020353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40433 + ... + 40973.

It is an arithmetic number, because the mean of its divisors is an integer number (1547952).

Almost surely, 222020323 is an apocalyptic number.

22020323 is a deficient number, since it is larger than the sum of its proper divisors (2746909).

22020323 is a wasteful number, since it uses less digits than its factorization.

22020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 22020323 is about 4692.5816988093. The cubic root of 22020323 is about 280.2901880948.

Adding to 22020323 its reverse (32302022), we get a palindrome (54322345).

The spelling of 22020323 in words is "twenty-two million, twenty thousand, three hundred twenty-three".

Divisors: 1 13 31 101 403 541 1313 3131 7033 16771 40703 54641 218023 710333 1693871 22020323