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204332143 = 1511976869
BaseRepresentation
bin11000010110111…
…01110001101111
3112020111011000011
430023131301233
5404302112033
632135314051
75030536351
oct1413356157
9466434004
10204332143
11a5381844
125851b927
13334430c2
141d1cd0d1
1512e12ccd
hexc2ddc6f

204332143 has 8 divisors (see below), whose sum is σ = 206759520. Its totient is φ = 201919200.

The previous prime is 204332123. The next prime is 204332153. The reversal of 204332143 is 341233402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-204332143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204332113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26313 + ... + 33181.

It is an arithmetic number, because the mean of its divisors is an integer number (25844940).

Almost surely, 2204332143 is an apocalyptic number.

204332143 is a deficient number, since it is larger than the sum of its proper divisors (2427377).

204332143 is a wasteful number, since it uses less digits than its factorization.

204332143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 204332143 is about 14294.4794588680. The cubic root of 204332143 is about 588.9958434048.

Adding to 204332143 its reverse (341233402), we get a palindrome (545565545).

The spelling of 204332143 in words is "two hundred four million, three hundred thirty-two thousand, one hundred forty-three".

Divisors: 1 151 197 6869 29747 1037219 1353193 204332143