Search a number
-
+
6489424471 = 831512272281
BaseRepresentation
bin1100000101100110…
…01100001001010111
3121202020222220211111
412002303030021113
5101242243040341
62551534515451
7316546124605
oct60263141127
917666886744
106489424471
112830124722
121311365b87
137c55ba34a
14457c10875
1527eab2681
hex182ccc257

6489424471 has 16 divisors (see below), whose sum is σ = 6643139328. Its totient is φ = 6337944000.

The previous prime is 6489424457. The next prime is 6489424499. The reversal of 6489424471 is 1744249846.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6489424471 is a prime.

It is a super-3 number, since 3×64894244713 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489424441) 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, 2843851 + ... + 2846131.

It is an arithmetic number, because the mean of its divisors is an integer number (415196208).

Almost surely, 26489424471 is an apocalyptic number.

6489424471 is a deficient number, since it is larger than the sum of its proper divisors (153714857).

6489424471 is a wasteful number, since it uses less digits than its factorization.

6489424471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742.

The product of its digits is 1548288, while the sum is 49.

The square root of 6489424471 is about 80556.9641371868. The cubic root of 6489424471 is about 1865.2428936115.

The spelling of 6489424471 in words is "six billion, four hundred eighty-nine million, four hundred twenty-four thousand, four hundred seventy-one".

Divisors: 1 83 151 227 2281 12533 18841 34277 189323 344431 517787 2844991 28587773 42976321 78185837 6489424471