Search a number
-
+
2039885 = 5407977
BaseRepresentation
bin111110010000001001101
310211122012022
413302001031
51010234020
6111415525
723224121
oct7620115
93748168
102039885
111173661
128245a5
13565643
143b1581
152a4625
hex1f204d

2039885 has 4 divisors (see below), whose sum is σ = 2447868. Its totient is φ = 1631904.

The previous prime is 2039879. The next prime is 2039899. The reversal of 2039885 is 5889302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1471369 + 568516 = 1213^2 + 754^2 .

It is a cyclic number.

It is not a de Polignac number, because 2039885 - 28 = 2039629 is a prime.

It is a super-2 number, since 2×20398852 = 8322261626450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203984 + ... + 203993.

It is an arithmetic number, because the mean of its divisors is an integer number (611967).

22039885 is an apocalyptic number.

It is an amenable number.

2039885 is a deficient number, since it is larger than the sum of its proper divisors (407983).

2039885 is an equidigital number, since it uses as much as digits as its factorization.

2039885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407982.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2039885 is about 1428.2454270888. The cubic root of 2039885 is about 126.8241308850.

The spelling of 2039885 in words is "two million, thirty-nine thousand, eight hundred eighty-five".

Divisors: 1 5 407977 2039885