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581424085 = 51110571347
BaseRepresentation
bin100010101001111…
…101001111010101
31111112001101220101
4202221331033111
52142321032320
6133405534101
720260010644
oct4251751725
91445041811
10581424085
11279220580
12142874331
13935c3728
145730d35b
153609dc0a
hex22a7d3d5

581424085 has 8 divisors (see below), whose sum is σ = 761137056. Its totient is φ = 422853840.

The previous prime is 581424079. The next prime is 581424101. The reversal of 581424085 is 580424185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 581424085 - 219 = 580899797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285619 + ... + 5285728.

It is an arithmetic number, because the mean of its divisors is an integer number (95142132).

Almost surely, 2581424085 is an apocalyptic number.

581424085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

581424085 is a deficient number, since it is larger than the sum of its proper divisors (179712971).

581424085 is a wasteful number, since it uses less digits than its factorization.

581424085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10571363.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 581424085 is about 24112.7369869121. The cubic root of 581424085 is about 834.6370755992.

The spelling of 581424085 in words is "five hundred eighty-one million, four hundred twenty-four thousand, eighty-five".

Divisors: 1 5 11 55 10571347 52856735 116284817 581424085