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2479385 = 5495877
BaseRepresentation
bin1001011101010100011001
311122222002002
421131110121
51113320020
6125050345
730034346
oct11352431
94588062
102479385
111443887
129b69b5
1368a6bc
144877cd
1533e975
hex25d519

2479385 has 4 divisors (see below), whose sum is σ = 2975268. Its totient is φ = 1983504.

The previous prime is 2479381. The next prime is 2479387. The reversal of 2479385 is 5839742.

2479385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 + 1008016 = 1213^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 2479385 - 22 = 2479381 is a prime.

It is a super-2 number, since 2×24793852 = 12294699956450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2479381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247934 + ... + 247943.

It is an arithmetic number, because the mean of its divisors is an integer number (743817).

22479385 is an apocalyptic number.

It is an amenable number.

2479385 is a deficient number, since it is larger than the sum of its proper divisors (495883).

2479385 is an equidigital number, since it uses as much as digits as its factorization.

2479385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495882.

The product of its digits is 60480, while the sum is 38.

The square root of 2479385 is about 1574.6063000001. The cubic root of 2479385 is about 135.3467992511.

The spelling of 2479385 in words is "two million, four hundred seventy-nine thousand, three hundred eighty-five".

Divisors: 1 5 495877 2479385