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6705480769 = 13262992
BaseRepresentation
bin1100011111010110…
…11000010001000001
3122022022112201100121
412033223120101001
5102213100341034
63025213420241
7325111434421
oct61753302101
918268481317
106705480769
112931083a49
12137179a681
1382b2a6a00
144787b2481
15293a3e1b4
hex18fad8441

6705480769 has 9 divisors (see below), whose sum is σ = 7262117283. Its totient is φ = 6188691912.

The previous prime is 6705480721. The next prime is 6705480781. The reversal of 6705480769 is 9670845076.

It is a happy number.

The square root of 6705480769 is 81887.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 991935025 + 5713545744 = 31495^2 + 75588^2 .

It is not a de Polignac number, because 6705480769 - 217 = 6705349697 is a prime.

It is a super-2 number, since 2×67054807692 = 89926944686857662722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6705480869) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1061382 + ... + 1067680.

Almost surely, 26705480769 is an apocalyptic number.

6705480769 is the 81887-th square number.

6705480769 is the 40944-th centered octagonal number.

It is an amenable number.

6705480769 is a deficient number, since it is larger than the sum of its proper divisors (556636514).

6705480769 is an frugal number, since it uses more digits than its factorization.

6705480769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12624 (or 6312 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The cubic root of 6705480769 is about 1885.7175389573.

The spelling of 6705480769 in words is "six billion, seven hundred five million, four hundred eighty thousand, seven hundred sixty-nine".

Divisors: 1 13 169 6299 81887 1064531 39677401 515806213 6705480769