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142323 = 347441
BaseRepresentation
bin100010101111110011
321020020020
4202233303
514023243
63014523
71131636
oct425763
9236206
10142323
1197a25
126a443
134ca1c
1439c1d
152c283
hex22bf3

142323 has 4 divisors (see below), whose sum is σ = 189768. Its totient is φ = 94880.

The previous prime is 142319. The next prime is 142327. The reversal of 142323 is 323241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323241 = 3107747.

It is an interprime number because it is at equal distance from previous prime (142319) and next prime (142327).

It is a cyclic number.

It is not a de Polignac number, because 142323 - 22 = 142319 is a prime.

It is a d-powerful number, because it can be written as 1 + 46 + 34 + 29 + 217 + 38 .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (142327) 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, 23718 + ... + 23723.

It is an arithmetic number, because the mean of its divisors is an integer number (47442).

2142323 is an apocalyptic number.

142323 is a deficient number, since it is larger than the sum of its proper divisors (47445).

142323 is an equidigital number, since it uses as much as digits as its factorization.

142323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47444.

The product of its digits is 144, while the sum is 15.

The square root of 142323 is about 377.2572066906. The cubic root of 142323 is about 52.2105614190.

Adding to 142323 its reverse (323241), we get a palindrome (465564).

It can be divided in two parts, 142 and 323, that added together give a triangular number (465 = T30).

The spelling of 142323 in words is "one hundred forty-two thousand, three hundred twenty-three", and thus it is an iban number.

Divisors: 1 3 47441 142323