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85852571 = 715597867
BaseRepresentation
bin1010001111000…
…00000110011011
312222112202120212
411013200012123
5133434240241
612304041335
72061510020
oct507400633
9188482525
1085852571
1144509342
122490324b
1314a2c24c
14b58b547
15780cbeb
hex51e019b

85852571 has 8 divisors (see below), whose sum is σ = 98192640. Its totient is φ = 73531368.

The previous prime is 85852519. The next prime is 85852603. The reversal of 85852571 is 17525858.

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 85852571 - 222 = 81658267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85852511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6980 + ... + 14846.

It is an arithmetic number, because the mean of its divisors is an integer number (12274080).

Almost surely, 285852571 is an apocalyptic number.

85852571 is a deficient number, since it is larger than the sum of its proper divisors (12340069).

85852571 is a wasteful number, since it uses less digits than its factorization.

85852571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9433.

The product of its digits is 112000, while the sum is 41.

The square root of 85852571 is about 9265.6662469571. Note that the first 3 decimals coincide. The cubic root of 85852571 is about 441.1481223870.

The spelling of 85852571 in words is "eighty-five million, eight hundred fifty-two thousand, five hundred seventy-one".

Divisors: 1 7 1559 7867 10913 55069 12264653 85852571