Search a number
-
+
206480084 = 2251620021
BaseRepresentation
bin11000100111010…
…10001011010100
3112101112021102112
430103222023110
5410324330314
632253330152
75055023516
oct1423521324
9471467375
10206480084
11a66095a8
1259196958
1333a15985
141d5cbbb6
15131d943e
hexc4ea2d4

206480084 has 6 divisors (see below), whose sum is σ = 361340154. Its totient is φ = 103240040.

The previous prime is 206480081. The next prime is 206480093. The reversal of 206480084 is 480084602.

It can be written as a sum of positive squares in only one way, i.e., 145202500 + 61277584 = 12050^2 + 7828^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 206480084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206480081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25810007 + ... + 25810014.

It is an arithmetic number, because the mean of its divisors is an integer number (60223359).

Almost surely, 2206480084 is an apocalyptic number.

It is an amenable number.

206480084 is a deficient number, since it is larger than the sum of its proper divisors (154860070).

206480084 is a wasteful number, since it uses less digits than its factorization.

206480084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51620025 (or 51620023 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 206480084 is about 14369.4148802239. The cubic root of 206480084 is about 591.0524965225.

The spelling of 206480084 in words is "two hundred six million, four hundred eighty thousand, eighty-four".

Divisors: 1 2 4 51620021 103240042 206480084