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22020670 = 257314581
BaseRepresentation
bin101010000000…
…0001000111110
31112102202200101
41110000020332
521114130140
62103551314
7355113130
oct124001076
945382611
1022020670
1111480501
12745b53a
1347400a9
142cd3050
151dee99a
hex150023e

22020670 has 16 divisors (see below), whose sum is σ = 45299808. Its totient is φ = 7549920.

The previous prime is 22020667. The next prime is 22020673. The reversal of 22020670 is 7602022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22020667) and next prime (22020673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157221 + ... + 157360.

It is an arithmetic number, because the mean of its divisors is an integer number (2831238).

Almost surely, 222020670 is an apocalyptic number.

22020670 is an abundant number, since it is smaller than the sum of its proper divisors (23279138).

22020670 is a wasteful number, since it uses less digits than its factorization.

22020670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314595.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22020670 is about 4692.6186719144. The cubic root of 22020670 is about 280.2916603739.

Adding to 22020670 its reverse (7602022), we get a palindrome (29622692).

The spelling of 22020670 in words is "twenty-two million, twenty thousand, six hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 314581 629162 1572905 2202067 3145810 4404134 11010335 22020670