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2491799341 = 9725688653
BaseRepresentation
bin1001010010000101…
…1101011100101101
320102122202112002111
42110201131130231
520100400034331
61051131524021
7115514642053
oct22441353455
96378675074
102491799341
1110696127a9
125965b9611
1330931a8a5
14198d181d3
15e8b5adb1
hex9485d72d

2491799341 has 4 divisors (see below), whose sum is σ = 2517488092. Its totient is φ = 2466110592.

The previous prime is 2491799287. The next prime is 2491799363. The reversal of 2491799341 is 1439971942.

2491799341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1439971942 = 2719985971.

It can be written as a sum of positive squares in 2 ways, for example, as 408242025 + 2083557316 = 20205^2 + 45646^2 .

It is a cyclic number.

It is not a de Polignac number, because 2491799341 - 211 = 2491797293 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 (2491799941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12844230 + ... + 12844423.

It is an arithmetic number, because the mean of its divisors is an integer number (629372023).

Almost surely, 22491799341 is an apocalyptic number.

It is an amenable number.

2491799341 is a deficient number, since it is larger than the sum of its proper divisors (25688751).

2491799341 is an equidigital number, since it uses as much as digits as its factorization.

2491799341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25688750.

The product of its digits is 489888, while the sum is 49.

The square root of 2491799341 is about 49917.9260486651. The cubic root of 2491799341 is about 1355.7231818121.

The spelling of 2491799341 in words is "two billion, four hundred ninety-one million, seven hundred ninety-nine thousand, three hundred forty-one".

Divisors: 1 97 25688653 2491799341