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196161 = 379341
BaseRepresentation
bin101111111001000001
3100222002020
4233321001
522234121
64112053
71444620
oct577101
9328066
10196161
11124419
1295629
136b394
14516b7
153d1c6
hex2fe41

196161 has 8 divisors (see below), whose sum is σ = 298944. Its totient is φ = 112080.

The previous prime is 196159. The next prime is 196169. The reversal of 196161 is 161691.

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

It is not a de Polignac number, because 196161 - 21 = 196159 is a prime.

196161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (196169) 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, 4650 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (37368).

2196161 is an apocalyptic number.

It is an amenable number.

196161 is a deficient number, since it is larger than the sum of its proper divisors (102783).

196161 is an equidigital number, since it uses as much as digits as its factorization.

196161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351.

The product of its digits is 324, while the sum is 24.

The square root of 196161 is about 442.9006660641. The cubic root of 196161 is about 58.1037579912.

The spelling of 196161 in words is "one hundred ninety-six thousand, one hundred sixty-one".

Divisors: 1 3 7 21 9341 28023 65387 196161