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105550556105 = 552249404029
BaseRepresentation
bin110001001001101001…
…1011010101111001001
3101002102222222210210202
41202103103122233021
53212131420243410
6120253402421545
710424432631551
oct1422323325711
9332388883722
10105550556105
11408445a0055
12185588018b5
139c51744977
1451742b8161
152b2b693ca5
hex18934dabc9

105550556105 has 8 divisors (see below), whose sum is σ = 126663405000. Its totient is φ = 84438619776.

The previous prime is 105550556071. The next prime is 105550556149. The reversal of 105550556105 is 501655055501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9736163584 + 95814392521 = 98672^2 + 309539^2 .

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 105550556105 - 28 = 105550555849 is a prime.

It is a super-2 number, since 2×1055505561052 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59231 + ... + 463259.

It is an arithmetic number, because the mean of its divisors is an integer number (15832925625).

Almost surely, 2105550556105 is an apocalyptic number.

It is an amenable number.

105550556105 is a deficient number, since it is larger than the sum of its proper divisors (21112848895).

105550556105 is an equidigital number, since it uses as much as digits as its factorization.

105550556105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456283.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 105550556105 in words is "one hundred five billion, five hundred fifty million, five hundred fifty-six thousand, one hundred five".

Divisors: 1 5 52249 261245 404029 2020145 21110111221 105550556105