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2105291299 = 2924371993
BaseRepresentation
bin111110101111100…
…0011001000100011
312102201110212201211
41331133003020203
513302423310144
6544523410551
7103112452336
oct17537031043
95381425654
102105291299
11990422571
124a9083a57
132772213c7
1415d86661d
15c4c60034
hex7d7c3223

2105291299 has 4 divisors (see below), whose sum is σ = 2105392536. Its totient is φ = 2105190064.

The previous prime is 2105291273. The next prime is 2105291323. The reversal of 2105291299 is 9921925012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2105291299 - 25 = 2105291267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105291249) 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, 6754 + ... + 65239.

It is an arithmetic number, because the mean of its divisors is an integer number (526348134).

Almost surely, 22105291299 is an apocalyptic number.

2105291299 is a deficient number, since it is larger than the sum of its proper divisors (101237).

2105291299 is an equidigital number, since it uses as much as digits as its factorization.

2105291299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101236.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 2105291299 is about 45883.4534336726. The cubic root of 2105291299 is about 1281.6538069213.

The spelling of 2105291299 in words is "two billion, one hundred five million, two hundred ninety-one thousand, two hundred ninety-nine".

Divisors: 1 29243 71993 2105291299