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105273695897 = 531986296149
BaseRepresentation
bin110001000001011001…
…1010001111010011001
3101001201201000211222222
41202002303101322121
53211100031232042
6120210112353425
710414531436126
oct1420263217231
9331651024888
10105273695897
1140712290967
121849bb45875
139c09289466
14514960974d
152b122062d2
hex1882cd1e99

105273695897 has 4 divisors (see below), whose sum is σ = 107259992100. Its totient is φ = 103287399696.

The previous prime is 105273695837. The next prime is 105273695909. The reversal of 105273695897 is 798596372501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798596372501 = 3809832096147.

It can be written as a sum of positive squares in 2 ways, for example, as 57629283721 + 47644412176 = 240061^2 + 218276^2 .

It is a cyclic number.

It is not a de Polignac number, because 105273695897 - 26 = 105273695833 is a prime.

It is a super-2 number, since 2×1052736958972 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105273695837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993148022 + ... + 993148127.

It is an arithmetic number, because the mean of its divisors is an integer number (26814998025).

Almost surely, 2105273695897 is an apocalyptic number.

It is an amenable number.

105273695897 is a deficient number, since it is larger than the sum of its proper divisors (1986296203).

105273695897 is an equidigital number, since it uses as much as digits as its factorization.

105273695897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986296202.

The product of its (nonzero) digits is 28576800, while the sum is 62.

The spelling of 105273695897 in words is "one hundred five billion, two hundred seventy-three million, six hundred ninety-five thousand, eight hundred ninety-seven".

Divisors: 1 53 1986296149 105273695897