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102347 = 714621

102347 has 4 divisors (see below), whose sum is σ = 116976. Its totient is φ = 87720.

The previous prime is 102337. The next prime is 102359. The reversal of 102347 is 743201.

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: 743201 = 1136577.

It is a cyclic number.

It is not a de Polignac number, because 102347 - 210 = 101323 is a prime.

It is a Duffinian number.

It is the 27-th primeval number, because it sets a new record (248) in the number of distinct primes that is it possible to write using its digits.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (102317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7304 + ... + 7317.

It is an arithmetic number, because the mean of its divisors is an integer number (29244).

2102347 is an apocalyptic number.

102347 is a deficient number, since it is larger than the sum of its proper divisors (14629).

102347 is an equidigital number, since it uses as much as digits as its factorization.

102347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14628.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 102347 is about 319.9171767817. The cubic root of 102347 is about 46.7762109112.

Adding to 102347 its reverse (743201), we get a palindrome (845548).

The spelling of 102347 in words is "one hundred two thousand, three hundred forty-seven", and thus it is an iban number.

Divisors: 1 7 14621 102347