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5780205 = 325128449
BaseRepresentation
bin10110000011001011101101
3101212122221200
4112003023231
52434431310
6323520113
7100062624
oct26031355
911778850
105780205
113298832
121b29039
131274c52
14aa66bb
157929c0
hex5832ed

5780205 has 12 divisors (see below), whose sum is σ = 10019100. Its totient is φ = 3082752.

The previous prime is 5780197. The next prime is 5780207. The reversal of 5780205 is 5020875.

It is a happy number.

5780205 is digitally balanced in base 4, 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 2 ways, for example, as 2518569 + 3261636 = 1587^2 + 1806^2 .

It is not a de Polignac number, because 5780205 - 23 = 5780197 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5780207) 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, 64180 + ... + 64269.

It is an arithmetic number, because the mean of its divisors is an integer number (834925).

Almost surely, 25780205 is an apocalyptic number.

It is an amenable number.

5780205 is a deficient number, since it is larger than the sum of its proper divisors (4238895).

5780205 is a wasteful number, since it uses less digits than its factorization.

5780205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128460 (or 128457 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 5780205 is about 2404.2056900357. The cubic root of 5780205 is about 179.4655442952.

The spelling of 5780205 in words is "five million, seven hundred eighty thousand, two hundred five".

Divisors: 1 3 5 9 15 45 128449 385347 642245 1156041 1926735 5780205