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471538081 = 7571117973
BaseRepresentation
bin11100000110110…
…001100110100001
31012212021121122101
4130012301212201
51431203204311
6114442410401
714454002410
oct3406614641
91185247571
10471538081
112221975a3
12111b00a01
13768cb221
14468a7477
152b5e4ec1
hex1c1b19a1

471538081 has 8 divisors (see below), whose sum is σ = 539849024. Its totient is φ = 403464240.

The previous prime is 471538073. The next prime is 471538091. The reversal of 471538081 is 180835174.

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 471538081 - 23 = 471538073 is a prime.

It is a super-2 number, since 2×4715380812 = 444696323666325122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 471538081.

It is not an unprimeable number, because it can be changed into a prime (471538031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54990 + ... + 62983.

It is an arithmetic number, because the mean of its divisors is an integer number (67481128).

Almost surely, 2471538081 is an apocalyptic number.

It is an amenable number.

471538081 is a deficient number, since it is larger than the sum of its proper divisors (68310943).

471538081 is a wasteful number, since it uses less digits than its factorization.

471538081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118551.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 471538081 is about 21714.9276075238. The cubic root of 471538081 is about 778.3452103011.

The spelling of 471538081 in words is "four hundred seventy-one million, five hundred thirty-eight thousand, eighty-one".

Divisors: 1 7 571 3997 117973 825811 67362583 471538081