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4819805 = 53726053
BaseRepresentation
bin10010011000101101011101
3100001212112022
4102120231131
52213213210
6251145525
755652624
oct22305535
910055468
104819805
1127a2211
1217452a5
13cc9a73
148d66bb
15653155
hex498b5d

4819805 has 8 divisors (see below), whose sum is σ = 5940312. Its totient is φ = 3751488.

The previous prime is 4819799. The next prime is 4819807. The reversal of 4819805 is 5089184.

4819805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2172676 + 2647129 = 1474^2 + 1627^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4819805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4819807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12842 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (742539).

Almost surely, 24819805 is an apocalyptic number.

It is an amenable number.

4819805 is a deficient number, since it is larger than the sum of its proper divisors (1120507).

4819805 is a wasteful number, since it uses less digits than its factorization.

4819805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26095.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 4819805 is about 2195.4054295278. The cubic root of 4819805 is about 168.9182172604.

The spelling of 4819805 in words is "four million, eight hundred nineteen thousand, eight hundred five".

Divisors: 1 5 37 185 26053 130265 963961 4819805