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6989889896 = 231179430567
BaseRepresentation
bin1101000001010000…
…10100000101101000
3200001010201012022222
412200220110011220
5103303402434041
63113333333212
7335134040513
oct64050240550
920033635288
106989889896
112a67679810
121430a97208
138751a6232
144a4487d7a
152ad9bd74b
hex1a0a14168

6989889896 has 16 divisors (see below), whose sum is σ = 14297502240. Its totient is φ = 3177222640.

The previous prime is 6989889883. The next prime is 6989889919.

6989889896 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6989889896.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39715196 + ... + 39715371.

It is an arithmetic number, because the mean of its divisors is an integer number (893593890).

Almost surely, 26989889896 is an apocalyptic number.

It is an amenable number.

6989889896 is an abundant number, since it is smaller than the sum of its proper divisors (7307612344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6989889896 is a wasteful number, since it uses less digits than its factorization.

6989889896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79430584 (or 79430580 counting only the distinct ones).

The product of its digits is 967458816, while the sum is 80.

The square root of 6989889896 is about 83605.5613939647. The cubic root of 6989889896 is about 1912.0097898403.

The spelling of 6989889896 in words is "six billion, nine hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 11 22 44 88 79430567 158861134 317722268 635444536 873736237 1747472474 3494944948 6989889896