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4780873 = 7696217
BaseRepresentation
bin10010001111001101001001
322222220010101
4102033031021
52210441443
6250245401
755431256
oct22171511
98886111
104780873
112775a39
121726861
13cb5126
148c642d
1564684d
hex48f349

4780873 has 4 divisors (see below), whose sum is σ = 4787860. Its totient is φ = 4773888.

The previous prime is 4780871. The next prime is 4780877. The reversal of 4780873 is 3780874.

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 2715904 + 2064969 = 1648^2 + 1437^2 .

It is a cyclic number.

It is not a de Polignac number, because 4780873 - 21 = 4780871 is a prime.

It is a Duffinian number.

4780873 is a lucky number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (4780871) 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, 2340 + ... + 3877.

It is an arithmetic number, because the mean of its divisors is an integer number (1196965).

Almost surely, 24780873 is an apocalyptic number.

It is an amenable number.

4780873 is a deficient number, since it is larger than the sum of its proper divisors (6987).

4780873 is an equidigital number, since it uses as much as digits as its factorization.

4780873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 4780873 is about 2186.5207522454. The cubic root of 4780873 is about 168.4621745582.

Subtracting from 4780873 its reverse (3780874), we obtain a palindrome (999999).

The spelling of 4780873 in words is "four million, seven hundred eighty thousand, eight hundred seventy-three".

Divisors: 1 769 6217 4780873