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206483145 = 35113893217
BaseRepresentation
bin11000100111010…
…10111011001001
3112101112102121220
430103222323021
5410324430040
632253352253
75055035451
oct1423527311
9471472556
10206483145
11a6610930
1259198689
1333a1719b
141d5ccd61
15131da2d0
hexc4eaec9

206483145 has 32 divisors (see below), whose sum is σ = 361445760. Its totient is φ = 99824640.

The previous prime is 206483131. The next prime is 206483149. The reversal of 206483145 is 541384602.

It is not a de Polignac number, because 206483145 - 24 = 206483129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206483149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62577 + ... + 65793.

It is an arithmetic number, because the mean of its divisors is an integer number (11295180).

Almost surely, 2206483145 is an apocalyptic number.

It is an amenable number.

206483145 is a deficient number, since it is larger than the sum of its proper divisors (154962615).

206483145 is a wasteful number, since it uses less digits than its factorization.

206483145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 206483145 is about 14369.5213907771. The cubic root of 206483145 is about 591.0554172284.

The spelling of 206483145 in words is "two hundred six million, four hundred eighty-three thousand, one hundred forty-five".

Divisors: 1 3 5 11 15 33 55 165 389 1167 1945 3217 4279 5835 9651 12837 16085 21395 35387 48255 64185 106161 176935 530805 1251413 3754239 6257065 13765543 18771195 41296629 68827715 206483145