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22020002 = 239727733
BaseRepresentation
bin101001111111…
…1111110100010
31112102201202122
41103333332202
521114120002
62103544242
7355111154
oct123777642
945381678
1022020002
111147aa54
12745b082
13473c9b4
142cd2ad4
151dee6a2
hex14fffa2

22020002 has 8 divisors (see below), whose sum is σ = 33114396. Its totient is φ = 10981872.

The previous prime is 22019989. The next prime is 22020023. The reversal of 22020002 is 20002022.

It can be written as a sum of positive squares in 2 ways, for example, as 21911761 + 108241 = 4681^2 + 329^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13073 + ... + 14660.

Almost surely, 222020002 is an apocalyptic number.

22020002 is a deficient number, since it is larger than the sum of its proper divisors (11094394).

22020002 is a wasteful number, since it uses less digits than its factorization.

22020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28132.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 22020002 is about 4692.5474957639. The cubic root of 22020002 is about 280.2888261168.

Adding to 22020002 its reverse (20002022), we get a palindrome (42022024).

The spelling of 22020002 in words is "twenty-two million, twenty thousand, two".

Divisors: 1 2 397 794 27733 55466 11010001 22020002