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142033 = 173821
BaseRepresentation
bin100010101011010001
321012211111
4202223101
514021113
63013321
71131043
oct425321
9235744
10142033
1197791
126a241
134c858
1439a93
152c13d
hex22ad1

142033 has 4 divisors (see below), whose sum is σ = 143028. Its totient is φ = 141040.

The previous prime is 142031. The next prime is 142039. The reversal of 142033 is 330241.

142033 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 88209 + 53824 = 297^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 142033 - 21 = 142031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142031) 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, 238 + ... + 583.

It is an arithmetic number, because the mean of its divisors is an integer number (35757).

2142033 is an apocalyptic number.

It is an amenable number.

142033 is a deficient number, since it is larger than the sum of its proper divisors (995).

142033 is an equidigital number, since it uses as much as digits as its factorization.

142033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 142033 is about 376.8726575383. The cubic root of 142033 is about 52.1750755679.

Adding to 142033 its reverse (330241), we get a palindrome (472274).

The spelling of 142033 in words is "one hundred forty-two thousand, thirty-three".

Divisors: 1 173 821 142033