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142343753 = 263541231
BaseRepresentation
bin10000111101111…
…11111001001001
3100220211210220212
420132333321021
5242420000003
622042530505
73345621236
oct1036777111
9326753825
10142343753
1173392a72
123b806a35
132364b096
1414c9478d
15c76add8
hex87bfe49

142343753 has 4 divisors (see below), whose sum is σ = 142885248. Its totient is φ = 141802260.

The previous prime is 142343749. The next prime is 142343779. The reversal of 142343753 is 357343241.

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 a cyclic number.

It is not a de Polignac number, because 142343753 - 22 = 142343749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142343783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270353 + ... + 270878.

It is an arithmetic number, because the mean of its divisors is an integer number (35721312).

Almost surely, 2142343753 is an apocalyptic number.

It is an amenable number.

142343753 is a deficient number, since it is larger than the sum of its proper divisors (541495).

142343753 is an equidigital number, since it uses as much as digits as its factorization.

142343753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541494.

The product of its digits is 30240, while the sum is 32.

The square root of 142343753 is about 11930.7901247151. The cubic root of 142343753 is about 522.1309901103.

Adding to 142343753 its reverse (357343241), we get a palindrome (499686994).

The spelling of 142343753 in words is "one hundred forty-two million, three hundred forty-three thousand, seven hundred fifty-three".

Divisors: 1 263 541231 142343753