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204600143 = 1122518263
BaseRepresentation
bin11000011000111…
…11001101001111
3112020222202122002
430030133031033
5404334201033
632145142515
75033033606
oct1414371517
9466882562
10204600143
11a5545130
125862aa3b
1333508097
141d25ca3d
1512e673e8
hexc31f34f

204600143 has 8 divisors (see below), whose sum is σ = 223326336. Its totient is φ = 185895000.

The previous prime is 204600139. The next prime is 204600167. The reversal of 204600143 is 341006402.

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 not a de Polignac number, because 204600143 - 22 = 204600139 is a prime.

It is a super-2 number, since 2×2046001432 = 83722437031240898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204602143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20630 + ... + 28892.

It is an arithmetic number, because the mean of its divisors is an integer number (27915792).

Almost surely, 2204600143 is an apocalyptic number.

204600143 is a deficient number, since it is larger than the sum of its proper divisors (18726193).

204600143 is a wasteful number, since it uses less digits than its factorization.

204600143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 204600143 is about 14303.8506354058. The cubic root of 204600143 is about 589.2532379293.

Adding to 204600143 its reverse (341006402), we get a palindrome (545606545).

The spelling of 204600143 in words is "two hundred four million, six hundred thousand, one hundred forty-three".

Divisors: 1 11 2251 8263 24761 90893 18600013 204600143