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142853 = 236211
BaseRepresentation
bin100010111000000101
321020221212
4202320011
514032403
63021205
71133324
oct427005
9236855
10142853
1198367
126a805
1350039
143a0bb
152c4d8
hex22e05

142853 has 4 divisors (see below), whose sum is σ = 149088. Its totient is φ = 136620.

The previous prime is 142841. The next prime is 142867. The reversal of 142853 is 358241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142853 - 24 = 142837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 6211 = 142853 / (1 + 4 + 2 + 8 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3083 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (37272).

2142853 is an apocalyptic number.

It is an amenable number.

142853 is a deficient number, since it is larger than the sum of its proper divisors (6235).

142853 is an equidigital number, since it uses as much as digits as its factorization.

142853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234.

The product of its digits is 960, while the sum is 23.

The square root of 142853 is about 377.9589924846. The cubic root of 142853 is about 52.2752905199.

The spelling of 142853 in words is "one hundred forty-two thousand, eight hundred fifty-three".

Divisors: 1 23 6211 142853