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84481585 = 5179111091
BaseRepresentation
bin1010000100100…
…01011000110001
312212222002221121
411002101120301
5133111402320
612214422241
72044036666
oct502213061
9185862847
1084481585
11437622a1
1224361981
131466c206
14b311a6d
15763b8aa
hex5091631

84481585 has 16 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 63481600.

The previous prime is 84481583. The next prime is 84481589. The reversal of 84481585 is 58518448.

It is not a de Polignac number, because 84481585 - 21 = 84481583 is a prime.

It is a super-2 number, since 2×844815852 = 14274276408224450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84481583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76890 + ... + 77980.

It is an arithmetic number, because the mean of its divisors is an integer number (6722352).

Almost surely, 284481585 is an apocalyptic number.

84481585 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84481585 is a deficient number, since it is larger than the sum of its proper divisors (23076047).

84481585 is a wasteful number, since it uses less digits than its factorization.

84481585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its digits is 204800, while the sum is 43.

The square root of 84481585 is about 9191.3864568954. The cubic root of 84481585 is about 438.7872683120.

The spelling of 84481585 in words is "eighty-four million, four hundred eighty-one thousand, five hundred eighty-five".

Divisors: 1 5 17 85 911 1091 4555 5455 15487 18547 77435 92735 993901 4969505 16896317 84481585