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5115561667 = 26891902403
BaseRepresentation
bin1001100001110100…
…10100011011000011
3111012111211110100221
410300322110123003
540434040433132
62203340123511
7240524361646
oct46072243303
914174743327
105115561667
112195668217
12ba9236597
13636a90588
14367583a5d
151ee181e97
hex130e946c3

5115561667 has 4 divisors (see below), whose sum is σ = 5117466760. Its totient is φ = 5113656576.

The previous prime is 5115561637. The next prime is 5115561673. The reversal of 5115561667 is 7661655115.

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

It is a cyclic number.

It is not a de Polignac number, because 5115561667 - 219 = 5115037379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5115561637) 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, 948513 + ... + 953890.

It is an arithmetic number, because the mean of its divisors is an integer number (1279366690).

Almost surely, 25115561667 is an apocalyptic number.

5115561667 is a deficient number, since it is larger than the sum of its proper divisors (1905093).

5115561667 is a wasteful number, since it uses less digits than its factorization.

5115561667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905092.

The product of its digits is 189000, while the sum is 43.

The square root of 5115561667 is about 71523.1547612380. The cubic root of 5115561667 is about 1723.0495820818.

The spelling of 5115561667 in words is "five billion, one hundred fifteen million, five hundred sixty-one thousand, six hundred sixty-seven".

Divisors: 1 2689 1902403 5115561667