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3087943689 = 31029314563
BaseRepresentation
bin1011100000001110…
…0100100000001001
321222012111210101210
42320003210200021
522311003144224
61230225203333
7136344042165
oct27003444011
97865453353
103087943689
111345077886
12722190549
133a299651c
14214179ca5
15131166429
hexb80e4809

3087943689 has 4 divisors (see below), whose sum is σ = 4117258256. Its totient is φ = 2058629124.

The previous prime is 3087943679. The next prime is 3087943723. The reversal of 3087943689 is 9863497803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3087943689 - 24 = 3087943673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3087943609) by changing a digit.

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, 514657279 + ... + 514657284.

It is an arithmetic number, because the mean of its divisors is an integer number (1029314564).

Almost surely, 23087943689 is an apocalyptic number.

It is an amenable number.

3087943689 is a deficient number, since it is larger than the sum of its proper divisors (1029314567).

3087943689 is a wasteful number, since it uses less digits than its factorization.

3087943689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029314566.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 3087943689 is about 55569.2692861801. The cubic root of 3087943689 is about 1456.2070323142.

The spelling of 3087943689 in words is "three billion, eighty-seven million, nine hundred forty-three thousand, six hundred eighty-nine".

Divisors: 1 3 1029314563 3087943689