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2105532055 = 51138282401
BaseRepresentation
bin111110101111111…
…1101111010010111
312102201221002222201
41331133331322113
513303004011210
6544532505331
7103114504264
oct17537757227
95381832881
102105532055
11990577440
124a917b247
132772a6b73
1415d8ca26b
15c4cab53a
hex7d7fde97

2105532055 has 8 divisors (see below), whose sum is σ = 2756332944. Its totient is φ = 1531296000.

The previous prime is 2105532053. The next prime is 2105532067. The reversal of 2105532055 is 5502355012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2105532055 - 21 = 2105532053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105532053) 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, 19141146 + ... + 19141255.

It is an arithmetic number, because the mean of its divisors is an integer number (344541618).

Almost surely, 22105532055 is an apocalyptic number.

2105532055 is a deficient number, since it is larger than the sum of its proper divisors (650800889).

2105532055 is a wasteful number, since it uses less digits than its factorization.

2105532055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38282417.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 2105532055 is about 45886.0769188215. The cubic root of 2105532055 is about 1281.7026606647.

Adding to 2105532055 its reverse (5502355012), we get a palindrome (7607887067).

The spelling of 2105532055 in words is "two billion, one hundred five million, five hundred thirty-two thousand, fifty-five".

Divisors: 1 5 11 55 38282401 191412005 421106411 2105532055