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81096103 = 1117479227
BaseRepresentation
bin1001101010101…
…10110110100111
312122121002221101
410311112312213
5131230033403
612014100531
72003206534
oct465266647
9178532841
1081096103
114185a780
12231aa747
1313a5527a
14aaadd8b
1571bd71d
hex4d56da7

81096103 has 16 divisors (see below), whose sum is σ = 95675904. Its totient is φ = 67903360.

The previous prime is 81096101. The next prime is 81096121. The reversal of 81096103 is 30169018.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 81096103 - 21 = 81096101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81096101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4176 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (5979744).

Almost surely, 281096103 is an apocalyptic number.

81096103 is a deficient number, since it is larger than the sum of its proper divisors (14579801).

81096103 is a wasteful number, since it uses less digits than its factorization.

81096103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 81096103 is about 9005.3374728546. The cubic root of 81096103 is about 432.8459201422.

The spelling of 81096103 in words is "eighty-one million, ninety-six thousand, one hundred three".

Divisors: 1 11 17 47 187 517 799 8789 9227 101497 156859 433669 1725449 4770359 7372373 81096103