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316143 = 351301
BaseRepresentation
bin1001101001011101111
3121001200000
41031023233
540104033
610435343
72454462
oct1151357
9531600
10316143
111a6583
12132b53
13b0b89
14832d9
1563a13
hex4d2ef

316143 has 12 divisors (see below), whose sum is σ = 473928. Its totient is φ = 210600.

The previous prime is 316139. The next prime is 316153. The reversal of 316143 is 341613.

It is not a de Polignac number, because 316143 - 22 = 316139 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316143.

It is not an unprimeable number, because it can be changed into a prime (316133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (39494).

2316143 is an apocalyptic number.

316143 is a deficient number, since it is larger than the sum of its proper divisors (157785).

316143 is an equidigital number, since it uses as much as digits as its factorization.

316143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1304 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 316143 is about 562.2659513077. The cubic root of 316143 is about 68.1231189336.

Adding to 316143 its reverse (341613), we get a palindrome (657756).

The spelling of 316143 in words is "three hundred sixteen thousand, one hundred forty-three".

Divisors: 1 3 9 27 81 243 1301 3903 11709 35127 105381 316143