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105110081 = 377613733
BaseRepresentation
bin1100100001111…
…01101001000001
321022210010220222
412100331221001
5203402010311
614232512425
72414264246
oct620755101
9238703828
10105110081
115437183a
122b24b715
1318a1271b
14dd615cd
159363adb
hex643da41

105110081 has 8 divisors (see below), whose sum is σ = 108121704. Its totient is φ = 102107520.

The previous prime is 105110051. The next prime is 105110107. The reversal of 105110081 is 180011501.

It can be written as a sum of positive squares in 4 ways, for example, as 7890481 + 97219600 = 2809^2 + 9860^2 .

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 105110081 - 218 = 104847937 is a prime.

It is a super-2 number, since 2×1051100812 = 22096258255653122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105110041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26291 + ... + 30023.

It is an arithmetic number, because the mean of its divisors is an integer number (13515213).

Almost surely, 2105110081 is an apocalyptic number.

It is an amenable number.

105110081 is a deficient number, since it is larger than the sum of its proper divisors (3011623).

105110081 is an equidigital number, since it uses as much as digits as its factorization.

105110081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 105110081 is about 10252.3207616617. The cubic root of 105110081 is about 471.9342066318.

Adding to 105110081 its reverse (180011501), we get a palindrome (285121582).

The spelling of 105110081 in words is "one hundred five million, one hundred ten thousand, eighty-one".

Divisors: 1 37 761 3733 28157 138121 2840813 105110081