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6563430561 = 310121661487
BaseRepresentation
bin1100001110011011…
…00000000010100001
3121221102020211002210
412013031200002201
5101420214234221
63003141032333
7321435145032
oct60715400241
917842224083
106563430561
112868981586
1213320b56a9
13807a2c42c
14463996a89
15286330276
hex1873600a1

6563430561 has 8 divisors (see below), whose sum is σ = 8837887104. Its totient is φ = 4332297200.

The previous prime is 6563430553. The next prime is 6563430583. The reversal of 6563430561 is 1650343656.

It is a happy number.

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 6563430561 - 23 = 6563430553 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6563430541) 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, 10830441 + ... + 10831046.

It is an arithmetic number, because the mean of its divisors is an integer number (1104735888).

Almost surely, 26563430561 is an apocalyptic number.

It is an amenable number.

6563430561 is a deficient number, since it is larger than the sum of its proper divisors (2274456543).

6563430561 is a wasteful number, since it uses less digits than its factorization.

6563430561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21661591.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 6563430561 is about 81015.0020736900. The cubic root of 6563430561 is about 1872.3065859882.

The spelling of 6563430561 in words is "six billion, five hundred sixty-three million, four hundred thirty thousand, five hundred sixty-one".

Divisors: 1 3 101 303 21661487 64984461 2187810187 6563430561