Base | Representation |
---|---|
bin | 101011110110… |
… | …0000011100100 |
3 | 1121020212012122 |
4 | 1113230003210 |
5 | 21341040410 |
6 | 2140405112 |
7 | 366246302 |
oct | 127540344 |
9 | 47225178 |
10 | 22986980 |
11 | 11a80505 |
12 | 7846798 |
13 | 49bab83 |
14 | 30a5272 |
15 | 2040e55 |
hex | 15ec0e4 |
22986980 has 12 divisors (see below), whose sum is σ = 48272700. Its totient is φ = 9194784.
The previous prime is 22986967. The next prime is 22986991. The reversal of 22986980 is 8968922.
It can be written as a sum of positive squares in 2 ways, for example, as 7573504 + 15413476 = 2752^2 + 3926^2 .
It is a super-3 number, since 3×229869803 (a number of 23 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574655 + ... + 574694.
It is an arithmetic number, because the mean of its divisors is an integer number (4022725).
Almost surely, 222986980 is an apocalyptic number.
22986980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
22986980 is an abundant number, since it is smaller than the sum of its proper divisors (25285720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22986980 is a wasteful number, since it uses less digits than its factorization.
22986980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1149358 (or 1149356 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 44.
The square root of 22986980 is about 4794.4739023171. The cubic root of 22986980 is about 284.3330253226. Note that the first 3 decimals are identical.
The spelling of 22986980 in words is "twenty-two million, nine hundred eighty-six thousand, nine hundred eighty".
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