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85480573 = 175394873
BaseRepresentation
bin1010001100001…
…01010001111101
312221211212022011
411012011101331
5133340334243
612252051221
72055400333
oct506052175
9187755264
1085480573
1144284902
1224763b11
131492bb29
14b4d1b53
15778789d
hex518547d

85480573 has 8 divisors (see below), whose sum is σ = 92217528. Its totient is φ = 78933504.

The previous prime is 85480553. The next prime is 85480579. The reversal of 85480573 is 37508458.

It can be written as a sum of positive squares in 4 ways, for example, as 63409369 + 22071204 = 7963^2 + 4698^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85480573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85480579) 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, 46536 + ... + 48337.

It is an arithmetic number, because the mean of its divisors is an integer number (11527191).

Almost surely, 285480573 is an apocalyptic number.

It is an amenable number.

85480573 is a deficient number, since it is larger than the sum of its proper divisors (6736955).

85480573 is a wasteful number, since it uses less digits than its factorization.

85480573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94943.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 85480573 is about 9245.5704529250. The cubic root of 85480573 is about 440.5100369930.

The spelling of 85480573 in words is "eighty-five million, four hundred eighty thousand, five hundred seventy-three".

Divisors: 1 17 53 901 94873 1612841 5028269 85480573