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192289 = 375197
BaseRepresentation
bin101110111100100001
3100202202211
4232330201
522123124
64042121
71430416
oct567441
9322684
10192289
11121519
1293341
13696a6
145010d
153be94
hex2ef21

192289 has 4 divisors (see below), whose sum is σ = 197524. Its totient is φ = 187056.

The previous prime is 192271. The next prime is 192307. The reversal of 192289 is 982291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982291 = 5916649.

It is an interprime number because it is at equal distance from previous prime (192271) and next prime (192307).

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 57600 = 367^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 192289 - 27 = 192161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 192289.

It is not an unprimeable number, because it can be changed into a prime (192229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2562 + ... + 2635.

It is an arithmetic number, because the mean of its divisors is an integer number (49381).

2192289 is an apocalyptic number.

It is an amenable number.

192289 is a deficient number, since it is larger than the sum of its proper divisors (5235).

192289 is an equidigital number, since it uses as much as digits as its factorization.

192289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234.

The product of its digits is 2592, while the sum is 31.

The square root of 192289 is about 438.5076966257. The cubic root of 192289 is about 57.7189134492.

The spelling of 192289 in words is "one hundred ninety-two thousand, two hundred eighty-nine".

Divisors: 1 37 5197 192289