Base | Representation |
---|---|
bin | 101011110011… |
… | …1100111101010 |
3 | 1121012221021200 |
4 | 1113213213222 |
5 | 21340000220 |
6 | 2140145030 |
7 | 366142314 |
oct | 127474752 |
9 | 47187250 |
10 | 22968810 |
11 | 11a68897 |
12 | 7838176 |
13 | 49b2817 |
14 | 309c7b4 |
15 | 203a890 |
hex | 15e79ea |
22968810 has 24 divisors (see below), whose sum is σ = 59719140. Its totient is φ = 6124992.
The previous prime is 22968809. The next prime is 22968811. The reversal of 22968810 is 1886922.
It is an interprime number because it is at equal distance from previous prime (22968809) and next prime (22968811).
It can be written as a sum of positive squares in 2 ways, for example, as 22953681 + 15129 = 4791^2 + 123^2 .
It is a super-2 number, since 2×229688102 = 1055132465632200, which contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (22968811) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127515 + ... + 127694.
Almost surely, 222968810 is an apocalyptic number.
22968810 is an abundant number, since it is smaller than the sum of its proper divisors (36750330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22968810 is a wasteful number, since it uses less digits than its factorization.
22968810 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 255222 (or 255219 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 22968810 is about 4792.5786378525. The cubic root of 22968810 is about 284.2580888020.
The spelling of 22968810 in words is "twenty-two million, nine hundred sixty-eight thousand, eight hundred ten".
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