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6479 = 111931
BaseRepresentation
bin1100101001111
322212222
41211033
5201404
645555
724614
oct14517
98788
106479
114960
1238bb
132c45
14250b
151dbe
hex194f

6479 has 8 divisors (see below), whose sum is σ = 7680. Its totient is φ = 5400.

The previous prime is 6473. The next prime is 6481. The reversal of 6479 is 9746.

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

It is a cyclic number.

It is not a de Polignac number, because 6479 - 212 = 2383 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 6 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6473) 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, 194 + ... + 224.

It is an arithmetic number, because the mean of its divisors is an integer number (960).

26479 is an apocalyptic number.

6479 is a deficient number, since it is larger than the sum of its proper divisors (1201).

6479 is a wasteful number, since it uses less digits than its factorization.

6479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61.

The product of its digits is 1512, while the sum is 26.

The square root of 6479 is about 80.4922356504. The cubic root of 6479 is about 18.6424359640.

It can be divided in two parts, 647 and 9, that added together give a palindrome (656).

The spelling of 6479 in words is "six thousand, four hundred seventy-nine".

Divisors: 1 11 19 31 209 341 589 6479