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2790105249 = 3930035083
BaseRepresentation
bin1010011001001101…
…1010000010100001
321012110002000212110
42212103122002201
521203231331444
61140505345533
7126066334431
oct24623320241
97173060773
102790105249
111201a3a408
1265a4982a9
13356074569
141c67aa2c1
15114e32cb9
hexa64da0a1

2790105249 has 4 divisors (see below), whose sum is σ = 3720140336. Its totient is φ = 1860070164.

The previous prime is 2790105211. The next prime is 2790105277. The reversal of 2790105249 is 9425010972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2790105249 - 211 = 2790103201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2790105209) 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, 465017539 + ... + 465017544.

It is an arithmetic number, because the mean of its divisors is an integer number (930035084).

Almost surely, 22790105249 is an apocalyptic number.

It is an amenable number.

2790105249 is a deficient number, since it is larger than the sum of its proper divisors (930035087).

2790105249 is an equidigital number, since it uses as much as digits as its factorization.

2790105249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930035086.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 2790105249 is about 52821.4468658328. The cubic root of 2790105249 is about 1407.7975186148.

The spelling of 2790105249 in words is "two billion, seven hundred ninety million, one hundred five thousand, two hundred forty-nine".

Divisors: 1 3 930035083 2790105249