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2986005 = 351118097
BaseRepresentation
bin1011011001000000010101
312121201000210
423121000111
51231023010
6144000033
734244361
oct13310025
95551023
102986005
11175a480
121000019
13807189
1457a2a1
153deb20
hex2d9015

2986005 has 16 divisors (see below), whose sum is σ = 5212224. Its totient is φ = 1447680.

The previous prime is 2986003. The next prime is 2986031. The reversal of 2986005 is 5006892.

It is not a de Polignac number, because 2986005 - 21 = 2986003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2986003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8884 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (325764).

22986005 is an apocalyptic number.

It is an amenable number.

2986005 is a deficient number, since it is larger than the sum of its proper divisors (2226219).

2986005 is a wasteful number, since it uses less digits than its factorization.

2986005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18116.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2986005 is about 1728.0060763782. The cubic root of 2986005 is about 144.0003375764. Note that the first 3 decimals are identical.

The spelling of 2986005 in words is "two million, nine hundred eighty-six thousand, five".

Divisors: 1 3 5 11 15 33 55 165 18097 54291 90485 199067 271455 597201 995335 2986005