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4488745 = 52333853
BaseRepresentation
bin10001000111111000101001
322110001101211
4101013320221
52122114440
6240113121
753103502
oct21077051
98401354
104488745
112596508
1216057a1
13c12181
1484bba9
155d9eea
hex447e29

4488745 has 8 divisors (see below), whose sum is σ = 5411016. Its totient is φ = 3574656.

The previous prime is 4488739. The next prime is 4488751. The reversal of 4488745 is 5478844.

It is an interprime number because it is at equal distance from previous prime (4488739) and next prime (4488751).

It can be written as a sum of positive squares in 4 ways, for example, as 1058841 + 3429904 = 1029^2 + 1852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4488745 - 25 = 4488713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4488698 and 4488707.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 762 + ... + 3091.

It is an arithmetic number, because the mean of its divisors is an integer number (676377).

Almost surely, 24488745 is an apocalyptic number.

It is an amenable number.

4488745 is a deficient number, since it is larger than the sum of its proper divisors (922271).

4488745 is a wasteful number, since it uses less digits than its factorization.

4488745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091.

The product of its digits is 143360, while the sum is 40.

The square root of 4488745 is about 2118.6658537863. The cubic root of 4488745 is about 164.9586060840.

Subtracting 4488745 from its reverse (5478844), we obtain a palindrome (990099).

The spelling of 4488745 in words is "four million, four hundred eighty-eight thousand, seven hundred forty-five".

Divisors: 1 5 233 1165 3853 19265 897749 4488745