Search a number
-
+
5431020211 = 192989110749
BaseRepresentation
bin1010000111011011…
…01100101010110011
3112000111102102010201
411003231230222303
542110320121321
62254525340031
7251404624111
oct50355545263
915014372121
105431020211
11233773a961
121076a07617
13687241636
1439741cab1
1521bbe6291
hex143b6cab3

5431020211 has 16 divisors (see below), whose sum is σ = 5980500000. Its totient is φ = 4911895296.

The previous prime is 5431020197. The next prime is 5431020229. The reversal of 5431020211 is 1120201345.

It is a cyclic number.

It is not a de Polignac number, because 5431020211 - 27 = 5431020083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5431020011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6336 + ... + 104413.

It is an arithmetic number, because the mean of its divisors is an integer number (373781250).

Almost surely, 25431020211 is an apocalyptic number.

5431020211 is a deficient number, since it is larger than the sum of its proper divisors (549479789).

5431020211 is a wasteful number, since it uses less digits than its factorization.

5431020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110886.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5431020211 is about 73695.4558368425. The cubic root of 5431020211 is about 1757.7636250577.

Adding to 5431020211 its reverse (1120201345), we get a palindrome (6551221556).

The spelling of 5431020211 in words is "five billion, four hundred thirty-one million, twenty thousand, two hundred eleven".

Divisors: 1 19 29 89 551 1691 2581 49039 110749 2104231 3211721 9856661 61022699 187276559 285843169 5431020211