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2169384589 = 5779375391
BaseRepresentation
bin1000000101001110…
…0010111010001101
312121012002011012101
42001103202322031
513420330301324
6555133235101
7104521315261
oct20123427215
95535064171
102169384589
11a13619829
12506632a91
132875a2528
1416818c0a1
15ca6c0944
hex814e2e8d

2169384589 has 4 divisors (see below), whose sum is σ = 2169765760. Its totient is φ = 2169003420.

The previous prime is 2169384577. The next prime is 2169384617. The reversal of 2169384589 is 9854839612.

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 a cyclic number.

It is not a de Polignac number, because 2169384589 - 27 = 2169384461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169384389) 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, 181917 + ... + 193474.

It is an arithmetic number, because the mean of its divisors is an integer number (542441440).

Almost surely, 22169384589 is an apocalyptic number.

It is an amenable number.

2169384589 is a deficient number, since it is larger than the sum of its proper divisors (381171).

2169384589 is an equidigital number, since it uses as much as digits as its factorization.

2169384589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381170.

The product of its digits is 3732480, while the sum is 55.

The square root of 2169384589 is about 46576.6528316495. The cubic root of 2169384589 is about 1294.5301911828.

The spelling of 2169384589 in words is "two billion, one hundred sixty-nine million, three hundred eighty-four thousand, five hundred eighty-nine".

Divisors: 1 5779 375391 2169384589