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4471532081 = 22871195511
BaseRepresentation
bin1000010101000011…
…00010101000110001
3102112121222100212022
410022201202220301
533124203011311
62015412241225
7215544252452
oct41241425061
912477870768
104471532081
111995077265
12a49610215
13563519c93
14305c19129
151b28685db
hex10a862a31

4471532081 has 4 divisors (see below), whose sum is σ = 4471750464. Its totient is φ = 4471313700.

The previous prime is 4471532071. The next prime is 4471532113. The reversal of 4471532081 is 1802351744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4471532081 - 218 = 4471269937 is a prime.

It is a super-2 number, since 2×44715320812 = 39989198302824381122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4471532071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74885 + ... + 120626.

It is an arithmetic number, because the mean of its divisors is an integer number (1117937616).

Almost surely, 24471532081 is an apocalyptic number.

It is an amenable number.

4471532081 is a deficient number, since it is larger than the sum of its proper divisors (218383).

4471532081 is a wasteful number, since it uses less digits than its factorization.

4471532081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218382.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 4471532081 is about 66869.5153339696. The cubic root of 4471532081 is about 1647.4748127428.

The spelling of 4471532081 in words is "four billion, four hundred seventy-one million, five hundred thirty-two thousand, eighty-one".

Divisors: 1 22871 195511 4471532081