Base | Representation |
---|---|
bin | 100010100111011… |
… | …111100100101000 |
3 | 1111110211121000200 |
4 | 202213133210220 |
5 | 2142134401110 |
6 | 133344032200 |
7 | 20251351065 |
oct | 4247374450 |
9 | 1443747020 |
10 | 580778280 |
11 | 27891a355 |
12 | 142602660 |
13 | 934287b4 |
14 | 571c1c6c |
15 | 35ec26c0 |
hex | 229df928 |
580778280 has 96 divisors (see below), whose sum is σ = 1906337160. Its totient is φ = 153331200.
The previous prime is 580778257. The next prime is 580778281. The reversal of 580778280 is 82877085.
It is a happy number.
580778280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 579750084 + 1028196 = 24078^2 + 1014^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (580778281) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28374 + ... + 44346.
Almost surely, 2580778280 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 580778280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953168580).
580778280 is an abundant number, since it is smaller than the sum of its proper divisors (1325558880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
580778280 is a wasteful number, since it uses less digits than its factorization.
580778280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16091 (or 16084 counting only the distinct ones).
The product of its (nonzero) digits is 250880, while the sum is 45.
The square root of 580778280 is about 24099.3418997283. The cubic root of 580778280 is about 834.3279423867.
The spelling of 580778280 in words is "five hundred eighty million, seven hundred seventy-eight thousand, two hundred eighty".
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