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581056801 = 13193231589
BaseRepresentation
bin100010101000100…
…011100100100001
31111111100202002021
4202220203210201
52142222304201
6133354021441
720253621103
oct4250434441
91444322067
10581056801
11278a9a636
12142717881
13934c54c0
1457255573
1536029ea1
hex22a23921

581056801 has 8 divisors (see below), whose sum is σ = 628998440. Its totient is φ = 533578752.

The previous prime is 581056793. The next prime is 581056813. The reversal of 581056801 is 108650185.

It can be written as a sum of positive squares in 4 ways, for example, as 5776 + 581051025 = 76^2 + 24105^2 .

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 581056801 - 23 = 581056793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (581056831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113286 + ... + 118303.

It is an arithmetic number, because the mean of its divisors is an integer number (78624805).

Almost surely, 2581056801 is an apocalyptic number.

It is an amenable number.

581056801 is a deficient number, since it is larger than the sum of its proper divisors (47941639).

581056801 is a wasteful number, since it uses less digits than its factorization.

581056801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231795.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 581056801 is about 24105.1198088705. The cubic root of 581056801 is about 834.4612925962.

The spelling of 581056801 in words is "five hundred eighty-one million, fifty-six thousand, eight hundred one".

Divisors: 1 13 193 2509 231589 3010657 44696677 581056801