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4872789 = 323714633
BaseRepresentation
bin10010100101101001010101
3100011120012200
4102211221111
52221412124
6252235113
756263245
oct22455125
910146180
104872789
112828aa9
12176ba99
131017c0c
1490bb25
15663bc9
hex4a5a55

4872789 has 12 divisors (see below), whose sum is σ = 7229196. Its totient is φ = 3160512.

The previous prime is 4872781. The next prime is 4872793. The reversal of 4872789 is 9872784.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 3090564 = 1335^2 + 1758^2 .

It is not a de Polignac number, because 4872789 - 23 = 4872781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4872781) 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 11 ways as a sum of consecutive naturals, for example, 6984 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (602433).

Almost surely, 24872789 is an apocalyptic number.

It is an amenable number.

4872789 is a deficient number, since it is larger than the sum of its proper divisors (2356407).

4872789 is a wasteful number, since it uses less digits than its factorization.

4872789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676 (or 14673 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4872789 is about 2207.4394668937. The cubic root of 4872789 is about 169.5349341940.

The spelling of 4872789 in words is "four million, eight hundred seventy-two thousand, seven hundred eighty-nine".

Divisors: 1 3 9 37 111 333 14633 43899 131697 541421 1624263 4872789