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206426324 = 22133969737
BaseRepresentation
bin11000100110111…
…01000011010100
3112101102112200102
430103131003110
5410321120244
632252233232
75054411006
oct1423350324
9471375612
10206426324
11a6582175
125916b818
13339c7370
141d5b6376
15131c854e
hexc4dd0d4

206426324 has 12 divisors (see below), whose sum is σ = 389034324. Its totient is φ = 95273664.

The previous prime is 206426287. The next prime is 206426329. The reversal of 206426324 is 423624602.

It can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 185449924 = 4580^2 + 13618^2 .

It is a super-2 number, since 2×2064263242 = 85223654480305952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206426329) 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 in 3 ways as a sum of consecutive naturals, for example, 1984817 + ... + 1984920.

It is an arithmetic number, because the mean of its divisors is an integer number (32419527).

Almost surely, 2206426324 is an apocalyptic number.

It is an amenable number.

206426324 is a deficient number, since it is larger than the sum of its proper divisors (182608000).

206426324 is a wasteful number, since it uses less digits than its factorization.

206426324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969754 (or 3969752 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 206426324 is about 14367.5441186029. The cubic root of 206426324 is about 591.0011957874.

The spelling of 206426324 in words is "two hundred six million, four hundred twenty-six thousand, three hundred twenty-four".

Divisors: 1 2 4 13 26 52 3969737 7939474 15878948 51606581 103213162 206426324