Search a number
-
+
22069888 = 27172421
BaseRepresentation
bin101010000110…
…0001010000000
31112112021012021
41110030022000
521122214023
62105011224
7355406461
oct124141200
945467167
1022069888
1111504485
127483b14
134759609
142d06d68
151e0e35d
hex150c280

22069888 has 16 divisors (see below), whose sum is σ = 43967610. Its totient is φ = 11034880.

The previous prime is 22069877. The next prime is 22069909. The reversal of 22069888 is 88896022.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 10291264 = 3432^2 + 3208^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 86083 + ... + 86338.

Almost surely, 222069888 is an apocalyptic number.

It is an amenable number.

22069888 is a deficient number, since it is larger than the sum of its proper divisors (21897722).

22069888 is an equidigital number, since it uses as much as digits as its factorization.

22069888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172435 (or 172423 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 22069888 is about 4697.8599383123. The cubic root of 22069888 is about 280.5003299215.

The spelling of 22069888 in words is "twenty-two million, sixty-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 128 172421 344842 689684 1379368 2758736 5517472 11034944 22069888