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6480080 = 24581001
BaseRepresentation
bin11000101110000011010000
3110012012222222
4120232003100
53124330310
6350520212
7106036235
oct30560320
913165888
106480080
113726642
122206068
13145b689
14c0978c
15880055
hex62e0d0

6480080 has 20 divisors (see below), whose sum is σ = 15066372. Its totient is φ = 2592000.

The previous prime is 6480053. The next prime is 6480107. The reversal of 6480080 is 800846.

It is an interprime number because it is at equal distance from previous prime (6480053) and next prime (6480107).

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 2334784 = 2036^2 + 1528^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40421 + ... + 40580.

Almost surely, 26480080 is an apocalyptic number.

It is an amenable number.

6480080 is an abundant number, since it is smaller than the sum of its proper divisors (8586292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6480080 is a wasteful number, since it uses less digits than its factorization.

6480080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81014 (or 81008 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 6480080 is about 2545.6001257071. The cubic root of 6480080 is about 186.4347175720.

The spelling of 6480080 in words is "six million, four hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 81001 162002 324004 405005 648008 810010 1296016 1620020 3240040 6480080