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85252547 = 297613863
BaseRepresentation
bin1010001010011…
…01100111000011
312221102021111202
411011031213003
5133311040142
612243131415
72053430462
oct505154703
9187367452
1085252547
1144139556
1224673b6b
131487c0c3
14b4729d9
157740032
hex514d9c3

85252547 has 8 divisors (see below), whose sum is σ = 88331040. Its totient is φ = 82183360.

The previous prime is 85252529. The next prime is 85252553. The reversal of 85252547 is 74525258.

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 85252547 - 214 = 85236163 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85252547.

It is not an unprimeable number, because it can be changed into a prime (85252577) 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, 20138 + ... + 24000.

It is an arithmetic number, because the mean of its divisors is an integer number (11041380).

Almost surely, 285252547 is an apocalyptic number.

85252547 is a deficient number, since it is larger than the sum of its proper divisors (3078493).

85252547 is a wasteful number, since it uses less digits than its factorization.

85252547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653.

The product of its digits is 112000, while the sum is 38.

The square root of 85252547 is about 9233.2305830625. The cubic root of 85252547 is about 440.1179900513.

The spelling of 85252547 in words is "eighty-five million, two hundred fifty-two thousand, five hundred forty-seven".

Divisors: 1 29 761 3863 22069 112027 2939743 85252547