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2104352249 = 5189405541
BaseRepresentation
bin111110101101101…
…1101110111111001
312102122201011121012
41331123131313321
513302203232444
6544451323305
7103101461516
oct17533356771
95378634535
102104352249
1198a940a9a
124a88b0535
13276c82b5c
1415d6a030d
15c4b26b9e
hex7d6dddf9

2104352249 has 4 divisors (see below), whose sum is σ = 2104762980. Its totient is φ = 2103941520.

The previous prime is 2104352221. The next prime is 2104352269. The reversal of 2104352249 is 9422534012.

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 1091839849 + 1012512400 = 33043^2 + 31820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104352249 - 212 = 2104348153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104352209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197582 + ... + 207959.

It is an arithmetic number, because the mean of its divisors is an integer number (526190745).

Almost surely, 22104352249 is an apocalyptic number.

It is an amenable number.

2104352249 is a deficient number, since it is larger than the sum of its proper divisors (410731).

2104352249 is an equidigital number, since it uses as much as digits as its factorization.

2104352249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410730.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2104352249 is about 45873.2193005898. The cubic root of 2104352249 is about 1281.4632211031.

The spelling of 2104352249 in words is "two billion, one hundred four million, three hundred fifty-two thousand, two hundred forty-nine".

Divisors: 1 5189 405541 2104352249