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107287 = 176311
BaseRepresentation
bin11010001100010111
312110011121
4122030113
511413122
62144411
7624535
oct321427
9173147
10107287
1173674
1252107
1339aab
142b155
1521bc7
hex1a317

107287 has 4 divisors (see below), whose sum is σ = 113616. Its totient is φ = 100960.

The previous prime is 107279. The next prime is 107309. The reversal of 107287 is 782701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782701 = 1276163.

It is a cyclic number.

It is not a de Polignac number, because 107287 - 23 = 107279 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107227) 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, 3139 + ... + 3172.

It is an arithmetic number, because the mean of its divisors is an integer number (28404).

2107287 is an apocalyptic number.

107287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

107287 is a deficient number, since it is larger than the sum of its proper divisors (6329).

107287 is an equidigital number, since it uses as much as digits as its factorization.

107287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 107287 is about 327.5469432005. The cubic root of 107287 is about 47.5170022237.

Adding to 107287 its reverse (782701), we get a palindrome (889988).

The spelling of 107287 in words is "one hundred seven thousand, two hundred eighty-seven".

Divisors: 1 17 6311 107287