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85160730 = 2355934787
BaseRepresentation
bin1010001001101…
…11001100011010
312221020121120010
411010313030122
5133300120410
612241142350
72052566004
oct504671432
9187217503
1085160730
1144086576
122462a9b6
1314849385
14b44b374
157722c20
hex513731a

85160730 has 32 divisors (see below), whose sum is σ = 204773184. Its totient is φ = 22666496.

The previous prime is 85160723. The next prime is 85160741. The reversal of 85160730 is 3706158.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15397 + ... + 20183.

It is an arithmetic number, because the mean of its divisors is an integer number (6399162).

Almost surely, 285160730 is an apocalyptic number.

85160730 is an abundant number, since it is smaller than the sum of its proper divisors (119612454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85160730 is a wasteful number, since it uses less digits than its factorization.

85160730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 85160730 is about 9228.2571485628. The cubic root of 85160730 is about 439.9599309242.

Adding to 85160730 its reverse (3706158), we get a palindrome (88866888).

The spelling of 85160730 in words is "eighty-five million, one hundred sixty thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 593 1186 1779 2965 3558 4787 5930 8895 9574 14361 17790 23935 28722 47870 71805 143610 2838691 5677382 8516073 14193455 17032146 28386910 42580365 85160730