Base | Representation |
---|---|
bin | 11010010101000… |
… | …11001111001100 |
3 | 120101121100002211 |
4 | 31022203033030 |
5 | 423020311310 |
6 | 33530000204 |
7 | 5321234431 |
oct | 1512431714 |
9 | 511540084 |
10 | 220869580 |
11 | 103747648 |
12 | 61b76064 |
13 | 369b3479 |
14 | 21495b88 |
15 | 145ccc8a |
hex | d2a33cc |
220869580 has 12 divisors (see below), whose sum is σ = 463826160. Its totient is φ = 88347824.
The previous prime is 220869563. The next prime is 220869599. The reversal of 220869580 is 85968022.
220869580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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, 5521720 + ... + 5521759.
It is an arithmetic number, because the mean of its divisors is an integer number (38652180).
Almost surely, 2220869580 is an apocalyptic number.
220869580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
220869580 is an abundant number, since it is smaller than the sum of its proper divisors (242956580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220869580 is a wasteful number, since it uses less digits than its factorization.
220869580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11043488 (or 11043486 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 40.
The square root of 220869580 is about 14861.6816006803. The cubic root of 220869580 is about 604.4754052839.
The spelling of 220869580 in words is "two hundred twenty million, eight hundred sixty-nine thousand, five hundred eighty".
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