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8119 = 23353
BaseRepresentation
bin1111110110111
3102010201
41332313
5224434
6101331
732446
oct17667
912121
108119
116111
124847
133907
142d5d
152614
hex1fb7

8119 has 4 divisors (see below), whose sum is σ = 8496. Its totient is φ = 7744.

The previous prime is 8117. The next prime is 8123. The reversal of 8119 is 9118.

8119 is nontrivially palindromic in base 3 and base 9.

8119 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a 6-Lehmer number, since φ(8119) divides (8119-1)6.

It is a cyclic number.

It is not a de Polignac number, because 8119 - 21 = 8117 is a prime.

It is a super-2 number, since 2×81192 = 131836322, which contains 22 as substring.

It is a Duffinian number.

8119 is an undulating number in base 9.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 8096 and 8105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8111) 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, 154 + ... + 199.

It is an arithmetic number, because the mean of its divisors is an integer number (2124).

28119 is an apocalyptic number.

8119 is a deficient number, since it is larger than the sum of its proper divisors (377).

8119 is a wasteful number, since it uses less digits than its factorization.

8119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 72, while the sum is 19.

The square root of 8119 is about 90.1054937282. The cubic root of 8119 is about 20.0986789888.

Subtracting from 8119 its sum of digits (19), we obtain a square (8100 = 902).

Subtracting 8119 from its reverse (9118), we obtain a palindrome (999).

It can be divided in two parts, 811 and 9, that added together give a triangular number (820 = T40).

The spelling of 8119 in words is "eight thousand, one hundred nineteen".

Divisors: 1 23 353 8119