Search a number
-
+
5218887189 = 313912515317
BaseRepresentation
bin1001101110001000…
…11110011000010101
3111110201020221100010
410313010132120111
541142013342224
62221510510433
7243220544355
oct46704363025
914421227303
105218887189
112238a2020a
121017965419
136522c9939
1437719cb65
15208291e29
hex13711e615

5218887189 has 8 divisors (see below), whose sum is σ = 7008578080. Its totient is φ = 3454227216.

The previous prime is 5218887181. The next prime is 5218887203. The reversal of 5218887189 is 9817888125.

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

It is not a de Polignac number, because 5218887189 - 23 = 5218887181 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 (5218887181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6257242 + ... + 6258075.

It is an arithmetic number, because the mean of its divisors is an integer number (876072260).

Almost surely, 25218887189 is an apocalyptic number.

It is an amenable number.

5218887189 is a deficient number, since it is larger than the sum of its proper divisors (1789690891).

5218887189 is a wasteful number, since it uses less digits than its factorization.

5218887189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515459.

The product of its digits is 2580480, while the sum is 57.

The square root of 5218887189 is about 72241.8659019823. The cubic root of 5218887189 is about 1734.5732175083.

The spelling of 5218887189 in words is "five billion, two hundred eighteen million, eight hundred eighty-seven thousand, one hundred eighty-nine".

Divisors: 1 3 139 417 12515317 37545951 1739629063 5218887189