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10206143 = 22934451
BaseRepresentation
bin100110111011…
…101110111111
3201012112012022
4212323232333
510103044033
61002430355
7152515343
oct46735677
921175168
1010206143
115841032
1235023bb
13216464c
1414d9623
15d69098
hex9bbbbf

10206143 has 4 divisors (see below), whose sum is σ = 10212888. Its totient is φ = 10199400.

The previous prime is 10206121. The next prime is 10206149. The reversal of 10206143 is 34160201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10206143 - 210 = 10205119 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 4518.

It is an arithmetic number, because the mean of its divisors is an integer number (2553222).

Almost surely, 210206143 is an apocalyptic number.

10206143 is a deficient number, since it is larger than the sum of its proper divisors (6745).

10206143 is an equidigital number, since it uses as much as digits as its factorization.

10206143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 10206143 is about 3194.7054637321. The cubic root of 10206143 is about 216.9138168526.

Adding to 10206143 its reverse (34160201), we get a palindrome (44366344).

The spelling of 10206143 in words is "ten million, two hundred six thousand, one hundred forty-three".

Divisors: 1 2293 4451 10206143