Search a number
-
+
475780 = 22523789
BaseRepresentation
bin1110100001010000100
3220011122111
41310022010
5110211110
614110404
74021054
oct1641204
9804574
10475780
112a5508
121ab404
13138736
14c5564
1595e8a
hex74284

475780 has 12 divisors (see below), whose sum is σ = 999180. Its totient is φ = 190304.

The previous prime is 475777. The next prime is 475789. The reversal of 475780 is 87574.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 350464 = 354^2 + 592^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (475789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11875 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (83265).

2475780 is an apocalyptic number.

It is an amenable number.

475780 is an abundant number, since it is smaller than the sum of its proper divisors (523400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

475780 is a wasteful number, since it uses less digits than its factorization.

475780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23798 (or 23796 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 475780 is about 689.7680769650. The cubic root of 475780 is about 78.0672223475.

The spelling of 475780 in words is "four hundred seventy-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 23789 47578 95156 118945 237890 475780