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22020230 = 2531251283
BaseRepresentation
bin101010000000…
…0000010000110
31112102202002002
41110000002012
521114121410
62103545302
7355111631
oct124000206
945382062
1022020230
1111480141
12745b232
13473cb2b
142cd2c18
151dee7a5
hex1500086

22020230 has 32 divisors (see below), whose sum is σ = 41223168. Its totient is φ = 8460000.

The previous prime is 22020227. The next prime is 22020277. The reversal of 22020230 is 3202022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77669 + ... + 77951.

It is an arithmetic number, because the mean of its divisors is an integer number (1288224).

Almost surely, 222020230 is an apocalyptic number.

22020230 is a deficient number, since it is larger than the sum of its proper divisors (19202938).

22020230 is a wasteful number, since it uses less digits than its factorization.

22020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 22020230 is about 4692.5717895414. The cubic root of 22020230 is about 280.2897935044.

Adding to 22020230 its reverse (3202022), we get a palindrome (25222252).

The spelling of 22020230 in words is "twenty-two million, twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 155 251 283 310 502 566 1255 1415 2510 2830 7781 8773 15562 17546 38905 43865 71033 77810 87730 142066 355165 710330 2202023 4404046 11010115 22020230