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105055039 = 569184631
BaseRepresentation
bin1100100001100…
…00001100111111
321022200100102101
412100300030333
5203343230124
614231405531
72413644625
oct620601477
9238610371
10105055039
1154334451
122b2238a7
13189c365b
14dd49515
159352644
hex643033f

105055039 has 4 divisors (see below), whose sum is σ = 105240240. Its totient is φ = 104869840.

The previous prime is 105055037. The next prime is 105055051. The reversal of 105055039 is 930550501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930550501 = 9291001669.

It is a cyclic number.

It is not a de Polignac number, because 105055039 - 21 = 105055037 is a prime.

It is a super-2 number, since 2×1050550392 = 22073122438583042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105054998 and 105055016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105055037) 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 3 ways as a sum of consecutive naturals, for example, 91747 + ... + 92884.

It is an arithmetic number, because the mean of its divisors is an integer number (26310060).

Almost surely, 2105055039 is an apocalyptic number.

105055039 is a deficient number, since it is larger than the sum of its proper divisors (185201).

105055039 is an equidigital number, since it uses as much as digits as its factorization.

105055039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185200.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 105055039 is about 10249.6360423188. The cubic root of 105055039 is about 471.8518144771.

The spelling of 105055039 in words is "one hundred five million, fifty-five thousand, thirty-nine".

Divisors: 1 569 184631 105055039