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105110661 = 3127275881
BaseRepresentation
bin1100100001111…
…01110010000101
321022210011201110
412100331302011
5203402020121
614232515233
72414266035
oct620756205
9238704643
10105110661
1154372217
122b24bb19
1318a12a76
14dd618c5
159363d76
hex643dc85

105110661 has 8 divisors (see below), whose sum is σ = 141251584. Its totient is φ = 69521760.

The previous prime is 105110653. The next prime is 105110669. The reversal of 105110661 is 166011501.

It is an interprime number because it is at equal distance from previous prime (105110653) and next prime (105110669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105110661 - 23 = 105110653 is a prime.

It is a super-2 number, since 2×1051106612 = 22096502111713842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105110669) 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 7 ways as a sum of consecutive naturals, for example, 137560 + ... + 138321.

It is an arithmetic number, because the mean of its divisors is an integer number (17656448).

Almost surely, 2105110661 is an apocalyptic number.

It is an amenable number.

105110661 is a deficient number, since it is larger than the sum of its proper divisors (36140923).

105110661 is a wasteful number, since it uses less digits than its factorization.

105110661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276011.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 105110661 is about 10252.3490479012. The cubic root of 105110661 is about 471.9350746783.

The spelling of 105110661 in words is "one hundred five million, one hundred ten thousand, six hundred sixty-one".

Divisors: 1 3 127 381 275881 827643 35036887 105110661