Search a number
-
+
142382015 = 528476403
BaseRepresentation
bin10000111110010…
…01001110111111
3100220220202101222
420133021032333
5242422211030
622043423555
73346140626
oct1037111677
9326822358
10142382015
1173409796
123b824bbb
1323662619
1414ca46bd
15c7773e5
hex87c93bf

142382015 has 4 divisors (see below), whose sum is σ = 170858424. Its totient is φ = 113905608.

The previous prime is 142381997. The next prime is 142382027. The reversal of 142382015 is 510283241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510283241 = 1339252557.

It is a cyclic number.

It is not a de Polignac number, because 142382015 - 210 = 142380991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 14238197 + ... + 14238206.

It is an arithmetic number, because the mean of its divisors is an integer number (42714606).

Almost surely, 2142382015 is an apocalyptic number.

142382015 is a deficient number, since it is larger than the sum of its proper divisors (28476409).

142382015 is an equidigital number, since it uses as much as digits as its factorization.

142382015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28476408.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 142382015 is about 11932.3935151335. The cubic root of 142382015 is about 522.1777688550.

It can be divided in two parts, 1423 and 82015, that added together give a palindrome (83438).

The spelling of 142382015 in words is "one hundred forty-two million, three hundred eighty-two thousand, fifteen".

Divisors: 1 5 28476403 142382015