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4728905 = 54720123
BaseRepresentation
bin10010000010100001001001
322220020211122
4102002201021
52202311110
6245205025
755123616
oct22024111
98806748
104728905
11273a995
121700775
13c9758c
148b150d
15636255
hex482849

4728905 has 8 divisors (see below), whose sum is σ = 5795712. Its totient is φ = 3702448.

The previous prime is 4728887. The next prime is 4728917. The reversal of 4728905 is 5098274.

It is a happy number.

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 4728905 - 28 = 4728649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9827 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (724464).

Almost surely, 24728905 is an apocalyptic number.

It is an amenable number.

4728905 is a deficient number, since it is larger than the sum of its proper divisors (1066807).

4728905 is a wasteful number, since it uses less digits than its factorization.

4728905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20175.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 4728905 is about 2174.6045617537. The cubic root of 4728905 is about 167.8495558881.

The spelling of 4728905 in words is "four million, seven hundred twenty-eight thousand, nine hundred five".

Divisors: 1 5 47 235 20123 100615 945781 4728905