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85117141 = 4713713219
BaseRepresentation
bin1010001001011…
…00100011010101
312221011101202201
411010230203111
5133242222031
612240204501
72052324634
oct504544325
9187141681
1085117141
114405684a
1224609731
1314832595
14b43951b
157714d61
hex512c8d5

85117141 has 8 divisors (see below), whose sum is σ = 87569280. Its totient is φ = 82691808.

The previous prime is 85117139. The next prime is 85117159. The reversal of 85117141 is 14171158.

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 85117141 - 21 = 85117139 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 (85117121) 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, 171 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (10946160).

Almost surely, 285117141 is an apocalyptic number.

It is an amenable number.

85117141 is a deficient number, since it is larger than the sum of its proper divisors (2452139).

85117141 is a wasteful number, since it uses less digits than its factorization.

85117141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13403.

The product of its digits is 1120, while the sum is 28.

The square root of 85117141 is about 9225.8951327229. The cubic root of 85117141 is about 439.8848545116.

Adding to 85117141 its reverse (14171158), we get a palindrome (99288299).

It can be divided in two parts, 85117 and 141, that added together give a palindrome (85258).

The spelling of 85117141 in words is "eighty-five million, one hundred seventeen thousand, one hundred forty-one".

Divisors: 1 47 137 6439 13219 621293 1811003 85117141