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3006568656 = 2432721373449
BaseRepresentation
bin1011001100110100…
…1001100011010000
321202112101111211200
42303031021203100
522124140144111
61214201111200
7134335261200
oct26315114320
97675344750
103006568656
111303147593
126baa88500
1338bb74310
14207436400
15128e40256
hexb33498d0

3006568656 has 360 divisors, whose sum is σ = 10709080200. Its totient is φ = 780337152.

The previous prime is 3006568651. The next prime is 3006568679. The reversal of 3006568656 is 6568656003.

3006568656 is a `hidden beast` number, since 30 + 0 + 6 + 568 + 6 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 241491600 + 2765077056 = 15540^2 + 52584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3006568651) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6695920 + ... + 6696368.

It is an arithmetic number, because the mean of its divisors is an integer number (29747445).

Almost surely, 23006568656 is an apocalyptic number.

3006568656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3006568656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5354540100).

3006568656 is an abundant number, since it is smaller than the sum of its proper divisors (7702511544).

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

3006568656 is a wasteful number, since it uses less digits than its factorization.

3006568656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 3006568656 is about 54832.1863142443. The cubic root of 3006568656 is about 1443.3014297906.

The spelling of 3006568656 in words is "three billion, six million, five hundred sixty-eight thousand, six hundred fifty-six".