Search a number
-
+
2042015 = 5408403
BaseRepresentation
bin111110010100010011111
310211202010012
413302202133
51010321030
6111433435
723233253
oct7624237
93752105
102042015
111175218
1282587b
135665c1
143b2263
152a5095
hex1f289f

2042015 has 4 divisors (see below), whose sum is σ = 2450424. Its totient is φ = 1633608.

The previous prime is 2041997. The next prime is 2042017. The reversal of 2042015 is 5102402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2042015 - 214 = 2025631 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 (2042017) 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, 204197 + ... + 204206.

It is an arithmetic number, because the mean of its divisors is an integer number (612606).

22042015 is an apocalyptic number.

2042015 is a deficient number, since it is larger than the sum of its proper divisors (408409).

2042015 is an equidigital number, since it uses as much as digits as its factorization.

2042015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408408.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2042015 is about 1428.9909027002. The cubic root of 2042015 is about 126.8682577892.

Adding to 2042015 its reverse (5102402), we get a palindrome (7144417).

The spelling of 2042015 in words is "two million, forty-two thousand, fifteen".

Divisors: 1 5 408403 2042015