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105541081 = 313404551
BaseRepresentation
bin1100100101001…
…10110111011001
321100121001010221
412102212313121
5204004303311
614250040041
72421040642
oct622466731
9240531127
10105541081
1154636638
122b419021
1318b33959
14100346c9
1593eb671
hex64a6dd9

105541081 has 4 divisors (see below), whose sum is σ = 108945664. Its totient is φ = 102136500.

The previous prime is 105541069. The next prime is 105541097. The reversal of 105541081 is 180145501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105541081 - 217 = 105410009 is a prime.

It is a super-2 number, since 2×1055410812 = 22277839557297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105541001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702245 + ... + 1702306.

It is an arithmetic number, because the mean of its divisors is an integer number (27236416).

Almost surely, 2105541081 is an apocalyptic number.

It is an amenable number.

105541081 is a deficient number, since it is larger than the sum of its proper divisors (3404583).

105541081 is an equidigital number, since it uses as much as digits as its factorization.

105541081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404582.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 105541081 is about 10273.3188892393. The cubic root of 105541081 is about 472.5783765546.

Adding to 105541081 its reverse (180145501), we get a palindrome (285686582).

The spelling of 105541081 in words is "one hundred five million, five hundred forty-one thousand, eighty-one".

Divisors: 1 31 3404551 105541081