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6655074049 = 13511928773
BaseRepresentation
bin1100011001010110…
…00101111100000001
3122011210200210100001
412030223011330001
5102112144332144
63020213200001
7323630124151
oct61453057401
918153623301
106655074049
1129056856a8
121358930001
13820a08450
14471c10761
1528e3d3bd4
hex18cac5f01

6655074049 has 4 divisors (see below), whose sum is σ = 7167002836. Its totient is φ = 6143145264.

The previous prime is 6655074047. The next prime is 6655074073. The reversal of 6655074049 is 9404705566.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4493289024 + 2161785025 = 67032^2 + 46495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655074049 - 21 = 6655074047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6655074047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255964374 + ... + 255964399.

It is an arithmetic number, because the mean of its divisors is an integer number (1791750709).

Almost surely, 26655074049 is an apocalyptic number.

It is an amenable number.

6655074049 is a deficient number, since it is larger than the sum of its proper divisors (511928787).

6655074049 is a wasteful number, since it uses less digits than its factorization.

6655074049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511928786.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 6655074049 is about 81578.6372097500. The cubic root of 6655074049 is about 1880.9805177377.

The spelling of 6655074049 in words is "six billion, six hundred fifty-five million, seventy-four thousand, forty-nine".

Divisors: 1 13 511928773 6655074049