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4985005 = 5997001
BaseRepresentation
bin10011000001000010101101
3100101021010211
4103001002231
52234010010
6254502421
760241354
oct23010255
910337124
104985005
1128a5343
121804a11
13105700c
1493a99b
1568708a
hex4c10ad

4985005 has 4 divisors (see below), whose sum is σ = 5982012. Its totient is φ = 3988000.

The previous prime is 4985003. The next prime is 4985027. The reversal of 4985005 is 5005894.

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 2172676 + 2812329 = 1474^2 + 1677^2 .

It is not a de Polignac number, because 4985005 - 21 = 4985003 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

4985005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498496 + ... + 498505.

It is an arithmetic number, because the mean of its divisors is an integer number (1495503).

Almost surely, 24985005 is an apocalyptic number.

It is an amenable number.

4985005 is a deficient number, since it is larger than the sum of its proper divisors (997007).

4985005 is an equidigital number, since it uses as much as digits as its factorization.

4985005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997006.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 4985005 is about 2232.7124758912. The cubic root of 4985005 is about 170.8264829033.

The spelling of 4985005 in words is "four million, nine hundred eighty-five thousand, five".

Divisors: 1 5 997001 4985005