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6986005917 = 311211697149
BaseRepresentation
bin1101000000110010…
…11111110110011101
3200000212101212111220
412200121133312131
5103301404142132
63113114203553
7335056033122
oct64031376635
920025355456
106986005917
112a65466710
12142b7235b9
13874446417
144a3b56749
152ad4a2a2c
hex1a065fd9d

6986005917 has 8 divisors (see below), whose sum is σ = 10161463200. Its totient is φ = 4233942960.

The previous prime is 6986005913. The next prime is 6986005933. The reversal of 6986005917 is 7195006896.

6986005917 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6986005917 - 22 = 6986005913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6986005917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986005913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105848542 + ... + 105848607.

It is an arithmetic number, because the mean of its divisors is an integer number (1270182900).

Almost surely, 26986005917 is an apocalyptic number.

It is an amenable number.

6986005917 is a deficient number, since it is larger than the sum of its proper divisors (3175457283).

6986005917 is a wasteful number, since it uses less digits than its factorization.

6986005917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211697163.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 6986005917 is about 83582.3301721123. The cubic root of 6986005917 is about 1911.6555838905.

The spelling of 6986005917 in words is "six billion, nine hundred eighty-six million, five thousand, nine hundred seventeen".

Divisors: 1 3 11 33 211697149 635091447 2328668639 6986005917