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22020190 = 252202019
BaseRepresentation
bin101010000000…
…0000001011110
31112102202000121
41110000001132
521114121230
62103545154
7355111543
oct124000136
945382017
1022020190
1111480105
12745b1ba
13473caca
142cd2bca
151dee77a
hex150005e

22020190 has 8 divisors (see below), whose sum is σ = 39636360. Its totient is φ = 8808072.

The previous prime is 22020181. The next prime is 22020191. The reversal of 22020190 is 9102022.

It is a happy number.

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

It is a super-2 number, since 2×220201902 = 969777535272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020191) 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, 1101000 + ... + 1101019.

It is an arithmetic number, because the mean of its divisors is an integer number (4954545).

Almost surely, 222020190 is an apocalyptic number.

22020190 is a deficient number, since it is larger than the sum of its proper divisors (17616170).

22020190 is a wasteful number, since it uses less digits than its factorization.

22020190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202026.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 22020190 is about 4692.5675274843. The cubic root of 22020190 is about 280.2896237877.

The spelling of 22020190 in words is "twenty-two million, twenty thousand, one hundred ninety".

Divisors: 1 2 5 10 2202019 4404038 11010095 22020190