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206145032 = 2325768129
BaseRepresentation
bin11000100100110…
…00011000001000
3112100220020211012
430102120120020
5410233120112
632242223052
75052126632
oct1422303010
9470806735
10206145032
11a63aa8a5
1259054a88
1333929312
141d541a52
1513170022
hexc498608

206145032 has 8 divisors (see below), whose sum is σ = 386521950. Its totient is φ = 103072512.

The previous prime is 206145031. The next prime is 206145059. The reversal of 206145032 is 230541602.

206145032 is digitally balanced in base 3, 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 only one way, i.e., 161442436 + 44702596 = 12706^2 + 6686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 206144989 and 206145007.

It is not an unprimeable number, because it can be changed into a prime (206145031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12884057 + ... + 12884072.

Almost surely, 2206145032 is an apocalyptic number.

It is an amenable number.

206145032 is a deficient number, since it is larger than the sum of its proper divisors (180376918).

206145032 is a wasteful number, since it uses less digits than its factorization.

206145032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25768135 (or 25768131 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 206145032 is about 14357.7516345701. The cubic root of 206145032 is about 590.7326262327.

Adding to 206145032 its reverse (230541602), we get a palindrome (436686634).

The spelling of 206145032 in words is "two hundred six million, one hundred forty-five thousand, thirty-two".

Divisors: 1 2 4 8 25768129 51536258 103072516 206145032