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2485189 = 7355027
BaseRepresentation
bin1001011110101111000101
311200021001001
421132233011
51114011224
6125133301
730060310
oct11365705
94607031
102485189
111448183
129ba231
13690235
14489977
15341544
hex25ebc5

2485189 has 4 divisors (see below), whose sum is σ = 2840224. Its totient is φ = 2130156.

The previous prime is 2485187. The next prime is 2485193. The reversal of 2485189 is 9815842.

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: 9815842 = 24907921.

It is not a de Polignac number, because 2485189 - 21 = 2485187 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 (2485183) 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, 177507 + ... + 177520.

It is an arithmetic number, because the mean of its divisors is an integer number (710056).

22485189 is an apocalyptic number.

It is an amenable number.

2485189 is a deficient number, since it is larger than the sum of its proper divisors (355035).

2485189 is an equidigital number, since it uses as much as digits as its factorization.

2485189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355034.

The product of its digits is 23040, while the sum is 37.

The square root of 2485189 is about 1576.4482230635. The cubic root of 2485189 is about 135.4523281963.

The spelling of 2485189 in words is "two million, four hundred eighty-five thousand, one hundred eighty-nine".

Divisors: 1 7 355027 2485189