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85613071 = 172595021
BaseRepresentation
bin1010001101001…
…01101000001111
312222002121001111
411012211220033
5133404104241
612254552451
72056461535
oct506455017
9188077044
1085613071
1144365405
1224808727
131497722b
14b528155
1577b1c81
hex51a5a0f

85613071 has 12 divisors (see below), whose sum is σ = 92505240. Its totient is φ = 79195520.

The previous prime is 85613057. The next prime is 85613083. The reversal of 85613071 is 17031658.

It is not a de Polignac number, because 85613071 - 213 = 85604879 is a prime.

It is a super-3 number, since 3×856130713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85614071) 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 11 ways as a sum of consecutive naturals, for example, 14541 + ... + 19561.

It is an arithmetic number, because the mean of its divisors is an integer number (7708770).

Almost surely, 285613071 is an apocalyptic number.

85613071 is a deficient number, since it is larger than the sum of its proper divisors (6892169).

85613071 is a wasteful number, since it uses less digits than its factorization.

85613071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114 (or 5097 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 85613071 is about 9252.7331637738. The cubic root of 85613071 is about 440.7375216948.

The spelling of 85613071 in words is "eighty-five million, six hundred thirteen thousand, seventy-one".

Divisors: 1 17 59 289 1003 5021 17051 85357 296239 1451069 5036063 85613071