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2850990709 = 7407284387
BaseRepresentation
bin1010100111101110…
…1010101001110101
321100200122100000111
42221323222221311
521314323200314
61150522343021
7130436010160
oct25173525165
97320570014
102850990709
111233345576
1267695aa71
13365871568
141d08d8ad7
1511a45cec4
hexa9eeaa75

2850990709 has 4 divisors (see below), whose sum is σ = 3258275104. Its totient is φ = 2443706316.

The previous prime is 2850990707. The next prime is 2850990713. The reversal of 2850990709 is 9070990582.

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 a cyclic number.

It is not a de Polignac number, because 2850990709 - 21 = 2850990707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2850990707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203642187 + ... + 203642200.

It is an arithmetic number, because the mean of its divisors is an integer number (814568776).

Almost surely, 22850990709 is an apocalyptic number.

It is an amenable number.

2850990709 is a deficient number, since it is larger than the sum of its proper divisors (407284395).

2850990709 is an equidigital number, since it uses as much as digits as its factorization.

2850990709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407284394.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 2850990709 is about 53394.6692938537. The cubic root of 2850990709 is about 1417.9642038637.

The spelling of 2850990709 in words is "two billion, eight hundred fifty million, nine hundred ninety thousand, seven hundred nine".

Divisors: 1 7 407284387 2850990709