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105028205053 = 176178129709
BaseRepresentation
bin110000111010000101…
…0110011100111111101
3101001002121002121212111
41201310022303213331
53210044210030203
6120125502534021
710405461004312
oct1416412634775
9331077077774
10105028205053
11405a6757a72
1218431897311
139b9a4652c5
145124b84d09
152aea8b326d
hex18742b39fd

105028205053 has 4 divisors (see below), whose sum is σ = 111206334780. Its totient is φ = 98850075328.

The previous prime is 105028205041. The next prime is 105028205057. The reversal of 105028205053 is 350502820501.

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 67567763844 + 37460441209 = 259938^2 + 193547^2 .

It is a cyclic number.

It is not a de Polignac number, because 105028205053 - 25 = 105028205021 is a prime.

It is a super-2 number, since 2×1050282050532 (a number of 23 digits) 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 (105028205057) 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, 3089064838 + ... + 3089064871.

It is an arithmetic number, because the mean of its divisors is an integer number (27801583695).

Almost surely, 2105028205053 is an apocalyptic number.

It is an amenable number.

105028205053 is a deficient number, since it is larger than the sum of its proper divisors (6178129727).

105028205053 is an equidigital number, since it uses as much as digits as its factorization.

105028205053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178129726.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 105028205053 in words is "one hundred five billion, twenty-eight million, two hundred five thousand, fifty-three".

Divisors: 1 17 6178129709 105028205053