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102849 = 334283
BaseRepresentation
bin11001000111000001
312020002020
4121013001
511242344
62112053
7605565
oct310701
9166066
10102849
11702aa
124b629
1337a76
14296a5
1520719
hex191c1

102849 has 4 divisors (see below), whose sum is σ = 137136. Its totient is φ = 68564.

The previous prime is 102841. The next prime is 102859. The reversal of 102849 is 948201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948201 = 3316067.

It is a cyclic number.

It is not a de Polignac number, because 102849 - 23 = 102841 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102849.

It is not an unprimeable number, because it can be changed into a prime (102841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17139 + ... + 17144.

It is an arithmetic number, because the mean of its divisors is an integer number (34284).

2102849 is an apocalyptic number.

It is an amenable number.

102849 is a deficient number, since it is larger than the sum of its proper divisors (34287).

102849 is an equidigital number, since it uses as much as digits as its factorization.

102849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34286.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 102849 is about 320.7007951347. The cubic root of 102849 is about 46.8525634848.

The spelling of 102849 in words is "one hundred two thousand, eight hundred forty-nine".

Divisors: 1 3 34283 102849