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85336031 = 1110772503
BaseRepresentation
bin1010001011000…
…01111111011111
312221120112000202
411011201333133
5133321223111
612245014115
72054226044
oct505417737
9187515022
1085336031
1144196250
12246b433b
13148ab0c1
14b4951cb
157759b3b
hex5161fdf

85336031 has 8 divisors (see below), whose sum is σ = 93965184. Its totient is φ = 76852120.

The previous prime is 85336021. The next prime is 85336057. The reversal of 85336031 is 13063358.

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 85336031 - 222 = 81141727 is a prime.

It is a super-2 number, since 2×853360312 = 14564476373665922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85335985 and 85336003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85336021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35075 + ... + 37428.

It is an arithmetic number, because the mean of its divisors is an integer number (11745648).

Almost surely, 285336031 is an apocalyptic number.

85336031 is a deficient number, since it is larger than the sum of its proper divisors (8629153).

85336031 is a wasteful number, since it uses less digits than its factorization.

85336031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72621.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 85336031 is about 9237.7503213715. The cubic root of 85336031 is about 440.2616057928.

Adding to 85336031 its reverse (13063358), we get a palindrome (98399389).

The spelling of 85336031 in words is "eighty-five million, three hundred thirty-six thousand, thirty-one".

Divisors: 1 11 107 1177 72503 797533 7757821 85336031