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22020123 = 338918869
BaseRepresentation
bin101010000000…
…0000000011011
31112102201221010
41110000000123
521114120443
62103545003
7355111416
oct124000033
945381833
1022020123
1111480054
12745b163
13473ca78
142cd2b7d
151dee733
hex150001b

22020123 has 8 divisors (see below), whose sum is σ = 29437200. Its totient is φ = 14641568.

The previous prime is 22020091. The next prime is 22020127. The reversal of 22020123 is 32102022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22020123 - 25 = 22020091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020099 and 22020108.

It is not an unprimeable number, because it can be changed into a prime (22020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8268 + ... + 10601.

It is an arithmetic number, because the mean of its divisors is an integer number (3679650).

Almost surely, 222020123 is an apocalyptic number.

22020123 is a deficient number, since it is larger than the sum of its proper divisors (7417077).

22020123 is a wasteful number, since it uses less digits than its factorization.

22020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22020123 is about 4692.5603885299. The cubic root of 22020123 is about 280.2893395119.

Adding to 22020123 its reverse (32102022), we get a palindrome (54122145).

The spelling of 22020123 in words is "twenty-two million, twenty thousand, one hundred twenty-three".

Divisors: 1 3 389 1167 18869 56607 7340041 22020123