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196823 = 1129617
BaseRepresentation
bin110000000011010111
3100222222202
4300003113
522244243
64115115
71446554
oct600327
9328882
10196823
11124970
1295a9b
136b783
1451a2b
153d4b8
hex300d7

196823 has 8 divisors (see below), whose sum is σ = 222480. Its totient is φ = 172480.

The previous prime is 196817. The next prime is 196831. The reversal of 196823 is 328691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-196823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11 + ... + 627.

It is an arithmetic number, because the mean of its divisors is an integer number (27810).

196823 is a Friedman number, since it can be written as 3^9*(8+2)-6-1, using all its digits and the basic arithmetic operations.

2196823 is an apocalyptic number.

196823 is a deficient number, since it is larger than the sum of its proper divisors (25657).

196823 is a wasteful number, since it uses less digits than its factorization.

196823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its digits is 2592, while the sum is 29.

The square root of 196823 is about 443.6473825010. The cubic root of 196823 is about 58.1690470460.

It can be divided in two parts, 1968 and 23, that added together give a palindrome (1991).

The spelling of 196823 in words is "one hundred ninety-six thousand, eight hundred twenty-three".

Divisors: 1 11 29 319 617 6787 17893 196823