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200000143 = 728571449
BaseRepresentation
bin10111110101111…
…00001010001111
3111221100001121201
423322330022033
5402200001033
631502410331
74645654540
oct1372741217
9457301551
10200000143
11a2993082
1256b909a7
13325873a5
141c7c24c7
151285947d
hexbebc28f

200000143 has 4 divisors (see below), whose sum is σ = 228571600. Its totient is φ = 171428688.

The previous prime is 200000131. The next prime is 200000161. The reversal of 200000143 is 341000002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200000143 - 213 = 199991951 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 (200000123) 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 3 ways as a sum of consecutive naturals, for example, 14285718 + ... + 14285731.

It is an arithmetic number, because the mean of its divisors is an integer number (57142900).

Almost surely, 2200000143 is an apocalyptic number.

200000143 is a deficient number, since it is larger than the sum of its proper divisors (28571457).

200000143 is an equidigital number, since it uses as much as digits as its factorization.

200000143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28571456.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 200000143 is about 14142.1406795435. The cubic root of 200000143 is about 584.8036870207.

Adding to 200000143 its reverse (341000002), we get a palindrome (541000145).

The spelling of 200000143 in words is "two hundred million, one hundred forty-three", and thus it is an aban number.

Divisors: 1 7 28571449 200000143