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6480068605 = 51936715097
BaseRepresentation
bin1100000100011110…
…11111111111111101
3121201121101120222221
412002033133333331
5101232344143410
62551002205341
7316403450203
oct60217377775
917647346887
106480068605
1128259144aa
12130a1b3851
137c3692a2a
14456897073
1527dd654da
hex1823dfffd

6480068605 has 8 divisors (see below), whose sum is σ = 7816374072. Its totient is φ = 5157193728.

The previous prime is 6480068591. The next prime is 6480068611. The reversal of 6480068605 is 5068600846.

It can be written as a sum of positive squares in 4 ways, for example, as 816302041 + 5663766564 = 28571^2 + 75258^2 .

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 6480068605 - 229 = 5943197693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356584 + ... + 3358513.

It is an arithmetic number, because the mean of its divisors is an integer number (977046759).

Almost surely, 26480068605 is an apocalyptic number.

It is an amenable number.

6480068605 is a deficient number, since it is larger than the sum of its proper divisors (1336305467).

6480068605 is a wasteful number, since it uses less digits than its factorization.

6480068605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715295.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 6480068605 is about 80498.8733150968. The cubic root of 6480068605 is about 1864.3460829221.

The spelling of 6480068605 in words is "six billion, four hundred eighty million, sixty-eight thousand, six hundred five".

Divisors: 1 5 193 965 6715097 33575485 1296013721 6480068605