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84886081 = 721732369
BaseRepresentation
bin1010000111101…
…00001001000001
312220201122210221
411003310021001
5133212323311
612231223041
72050343200
oct503641101
9186648727
1084886081
1143a09195
1224517a81
1314781367
14b3b9237
1576bb671
hex50f4241

84886081 has 6 divisors (see below), whose sum is σ = 98745090. Its totient is φ = 72759456.

The previous prime is 84886063. The next prime is 84886093. The reversal of 84886081 is 18068848.

It can be written as a sum of positive squares in only one way, i.e., 84345856 + 540225 = 9184^2 + 735^2 .

It is not a de Polignac number, because 84886081 - 225 = 51331649 is a prime.

It is a super-2 number, since 2×848860812 = 14411293495077122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84886051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 866136 + ... + 866233.

It is an arithmetic number, because the mean of its divisors is an integer number (16457515).

Almost surely, 284886081 is an apocalyptic number.

It is an amenable number.

84886081 is a deficient number, since it is larger than the sum of its proper divisors (13859009).

84886081 is a wasteful number, since it uses less digits than its factorization.

84886081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732383 (or 1732376 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 84886081 is about 9213.3642606813. The cubic root of 84886081 is about 439.4864549135.

The spelling of 84886081 in words is "eighty-four million, eight hundred eighty-six thousand, eighty-one".

Divisors: 1 7 49 1732369 12126583 84886081