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913806830833 = 13120735822317
BaseRepresentation
bin11010100110000110010…
…00011010110011110001
310020100200202202202112021
431103003020122303301
5104432434022041313
61535444055431441
7123006661621441
oct15230310326361
93210622682467
10913806830833
113225a8151196
12129128085581
1368230062bb0
143232ad78121
1518b8470478d
hexd4c321acf1

913806830833 has 8 divisors (see below), whose sum is σ = 984181345448. Its totient is φ = 843443985024.

The previous prime is 913806830749. The next prime is 913806830851. The reversal of 913806830833 is 338038608319.

It can be written as a sum of positive squares in 4 ways, for example, as 90981863424 + 822824967409 = 301632^2 + 907097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-913806830833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913806834833) 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 7 ways as a sum of consecutive naturals, for example, 2754210 + ... + 3068107.

It is an arithmetic number, because the mean of its divisors is an integer number (123022668181).

Almost surely, 2913806830833 is an apocalyptic number.

It is an amenable number.

913806830833 is a deficient number, since it is larger than the sum of its proper divisors (70374514615).

913806830833 is a wasteful number, since it uses less digits than its factorization.

913806830833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834403.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 913806830833 in words is "nine hundred thirteen billion, eight hundred six million, eight hundred thirty thousand, eight hundred thirty-three".

Divisors: 1 13 12073 156949 5822317 75690121 70292833141 913806830833