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3000055 = 5600011
BaseRepresentation
bin1011011100011011110111
312122102022011
423130123313
51232000210
6144145051
734333342
oct13343367
95572264
103000055
111769a93
121008187
138106a6
14581459
153e3d8a
hex2dc6f7

3000055 has 4 divisors (see below), whose sum is σ = 3600072. Its totient is φ = 2400040.

The previous prime is 3000047. The next prime is 3000061. The reversal of 3000055 is 5500003.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3000055 - 23 = 3000047 is a prime.

It is a Smith number, since the sum of its digits (13) 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.

It is a junction number, because it is equal to n+sod(n) for n = 2999999 and 3000044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300001 + ... + 300010.

It is an arithmetic number, because the mean of its divisors is an integer number (900018).

Almost surely, 23000055 is an apocalyptic number.

3000055 is a deficient number, since it is larger than the sum of its proper divisors (600017).

3000055 is an equidigital number, since it uses as much as digits as its factorization.

3000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600016.

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 3000055 is about 1732.0666846285. The cubic root of 3000055 is about 144.2258384001.

Adding to 3000055 its reverse (5500003), we get a palindrome (8500058).

The spelling of 3000055 in words is "three million, fifty-five", and thus it is an aban number and an uban number.

Divisors: 1 5 600011 3000055