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105118813 = 3710327583
BaseRepresentation
bin1100100001111…
…11110001011101
321022210120220101
412100333301131
5203402300223
614233021101
72414331562
oct620776135
9238716811
10105118813
1154378358
122b254791
1318a166a7
14dd64869
1593664ad
hex643fc5d

105118813 has 8 divisors (see below), whose sum is σ = 109011968. Its totient is φ = 101281104.

The previous prime is 105118807. The next prime is 105118831. The reversal of 105118813 is 318811501.

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 105118813 - 25 = 105118781 is a prime.

It is a super-2 number, since 2×1051188132 = 22099929693057938, 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 (105118873) 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, 9981 + ... + 17602.

It is an arithmetic number, because the mean of its divisors is an integer number (13626496).

Almost surely, 2105118813 is an apocalyptic number.

It is an amenable number.

105118813 is a deficient number, since it is larger than the sum of its proper divisors (3893155).

105118813 is a wasteful number, since it uses less digits than its factorization.

105118813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27723.

The product of its (nonzero) digits is 960, while the sum is 28.

The square root of 105118813 is about 10252.7466076169. The cubic root of 105118813 is about 471.9472748847.

The spelling of 105118813 in words is "one hundred five million, one hundred eighteen thousand, eight hundred thirteen".

Divisors: 1 37 103 3811 27583 1020571 2841049 105118813