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85506883 = 7111110479
BaseRepresentation
bin1010001100010…
…11101101000011
312221220012101121
411012023231003
5133342210013
612252413111
72055540130
oct506135503
9187805347
1085506883
11442a2650
1224777197
131493aab7
14b4db587
15779058d
hex518bb43

85506883 has 8 divisors (see below), whose sum is σ = 106606080. Its totient is φ = 66628680.

The previous prime is 85506881. The next prime is 85506929. The reversal of 85506883 is 38860558.

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 85506883 - 21 = 85506881 is a prime.

It is a super-2 number, since 2×855068832 = 14622854080751378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85506881) 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, 555163 + ... + 555316.

It is an arithmetic number, because the mean of its divisors is an integer number (13325760).

Almost surely, 285506883 is an apocalyptic number.

85506883 is a deficient number, since it is larger than the sum of its proper divisors (21099197).

85506883 is a wasteful number, since it uses less digits than its factorization.

85506883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110497.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 85506883 is about 9246.9931869771. The cubic root of 85506883 is about 440.5552271057. Note that the first 3 decimals are identical.

The spelling of 85506883 in words is "eighty-five million, five hundred six thousand, eight hundred eighty-three".

Divisors: 1 7 11 77 1110479 7773353 12215269 85506883