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142112037 = 347370679
BaseRepresentation
bin10000111100001…
…11010100100101
3100220102001001210
420132013110211
5242340041122
622033542033
73343634544
oct1036072445
9326361053
10142112037
1173244971
123b714919
1323599782
1414c3415b
15c72240c
hex8787525

142112037 has 4 divisors (see below), whose sum is σ = 189482720. Its totient is φ = 94741356.

The previous prime is 142112011. The next prime is 142112041. The reversal of 142112037 is 730211241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 730211241 = 3243403747.

It is not a de Polignac number, because 142112037 - 27 = 142111909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142112137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23685337 + ... + 23685342.

It is an arithmetic number, because the mean of its divisors is an integer number (47370680).

Almost surely, 2142112037 is an apocalyptic number.

It is an amenable number.

142112037 is a deficient number, since it is larger than the sum of its proper divisors (47370683).

142112037 is an equidigital number, since it uses as much as digits as its factorization.

142112037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47370682.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 142112037 is about 11921.0753290129. The cubic root of 142112037 is about 521.8475171539.

Adding to 142112037 its reverse (730211241), we get a palindrome (872323278).

The spelling of 142112037 in words is "one hundred forty-two million, one hundred twelve thousand, thirty-seven".

Divisors: 1 3 47370679 142112037