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80884585 = 564125237
BaseRepresentation
bin1001101001000…
…11001101101001
312122012100210101
410310203031221
5131201301320
612005345401
72001336055
oct464431551
9178170711
1080884585
1141725871
1223108261
13139acc02
14aa56c65
15717ac0a
hex4d23369

80884585 has 8 divisors (see below), whose sum is σ = 97216776. Its totient is φ = 64604160.

The previous prime is 80884547. The next prime is 80884619. The reversal of 80884585 is 58548808.

It can be written as a sum of positive squares in 4 ways, for example, as 33605209 + 47279376 = 5797^2 + 6876^2 .

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

It is not a de Polignac number, because 80884585 - 215 = 80851817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 9414 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (12152097).

Almost surely, 280884585 is an apocalyptic number.

It is an amenable number.

80884585 is a deficient number, since it is larger than the sum of its proper divisors (16332191).

80884585 is a wasteful number, since it uses less digits than its factorization.

80884585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25883.

The product of its (nonzero) digits is 409600, while the sum is 46.

The square root of 80884585 is about 8993.5857698695. The cubic root of 80884585 is about 432.4692706513.

The spelling of 80884585 in words is "eighty million, eight hundred eighty-four thousand, five hundred eighty-five".

Divisors: 1 5 641 3205 25237 126185 16176917 80884585