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81110341 = 1341433539
BaseRepresentation
bin1001101010110…
…10010101000101
312122121211110201
410311122111011
5131231012331
612014250501
72003266204
oct465322505
9178554421
1081110341
114186a444
12231b6a31
1313a5b8b0
14aab523b
1571c2a61
hex4d5a545

81110341 has 16 divisors (see below), whose sum is σ = 91586880. Its totient is φ = 71326080.

The previous prime is 81110317. The next prime is 81110357. The reversal of 81110341 is 14301118.

It is a cyclic number.

It is not a de Polignac number, because 81110341 - 213 = 81102149 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 (81110041) 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 15 ways as a sum of consecutive naturals, for example, 21150 + ... + 24688.

It is an arithmetic number, because the mean of its divisors is an integer number (5724180).

Almost surely, 281110341 is an apocalyptic number.

It is an amenable number.

81110341 is a deficient number, since it is larger than the sum of its proper divisors (10476539).

81110341 is a wasteful number, since it uses less digits than its factorization.

81110341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 81110341 is about 9006.1279693329. The cubic root of 81110341 is about 432.8712501698.

Adding to 81110341 its reverse (14301118), we get a palindrome (95411459).

The spelling of 81110341 in words is "eighty-one million, one hundred ten thousand, three hundred forty-one".

Divisors: 1 13 41 43 533 559 1763 3539 22919 46007 145099 152177 1886287 1978301 6239257 81110341