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105134681 = 176184393
BaseRepresentation
bin1100100010000…
…11101001011001
321022211101200002
412101003221121
5203403302211
614233222345
72414426051
oct621035131
9238741602
10105134681
1154389273
122b2619b5
1318a20992
14dd6a561
15936b03b
hex6443a59

105134681 has 4 divisors (see below), whose sum is σ = 111319092. Its totient is φ = 98950272.

The previous prime is 105134639. The next prime is 105134693. The reversal of 105134681 is 186431501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76405081 + 28729600 = 8741^2 + 5360^2 .

It is a cyclic number.

It is not a de Polignac number, because 105134681 - 214 = 105118297 is a prime.

It is a super-2 number, since 2×1051346812 = 22106602297943522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105134611) 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, 3092180 + ... + 3092213.

It is an arithmetic number, because the mean of its divisors is an integer number (27829773).

Almost surely, 2105134681 is an apocalyptic number.

It is an amenable number.

105134681 is a deficient number, since it is larger than the sum of its proper divisors (6184411).

105134681 is an equidigital number, since it uses as much as digits as its factorization.

105134681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184410.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 105134681 is about 10253.5204198363. The cubic root of 105134681 is about 471.9710209753.

The spelling of 105134681 in words is "one hundred five million, one hundred thirty-four thousand, six hundred eighty-one".

Divisors: 1 17 6184393 105134681