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2106869341 = 18353114797
BaseRepresentation
bin111110110010100…
…0100011001011101
312102211110001101211
41331211010121131
513303324304331
6545021304421
7103132044133
oct17545043135
95384401354
102106869341
11991300135
124a9705111
13277654765
1415db57753
15c4e728b1
hex7d94465d

2106869341 has 4 divisors (see below), whose sum is σ = 2107002492. Its totient is φ = 2106736192.

The previous prime is 2106869339. The next prime is 2106869351. The reversal of 2106869341 is 1439686012.

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 91757241 + 2015112100 = 9579^2 + 44890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2106869341 - 21 = 2106869339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2106869294 and 2106869303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106869311) 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, 39046 + ... + 75751.

It is an arithmetic number, because the mean of its divisors is an integer number (526750623).

Almost surely, 22106869341 is an apocalyptic number.

It is an amenable number.

2106869341 is a deficient number, since it is larger than the sum of its proper divisors (133151).

2106869341 is a wasteful number, since it uses less digits than its factorization.

2106869341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133150.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2106869341 is about 45900.6464115703. The cubic root of 2106869341 is about 1281.9739523914.

It can be divided in two parts, 21068 and 69341, that added together give a palindrome (90409).

The spelling of 2106869341 in words is "two billion, one hundred six million, eight hundred sixty-nine thousand, three hundred forty-one".

Divisors: 1 18353 114797 2106869341