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10815844013 = 132379168863
BaseRepresentation
bin10100001001010110…
…01010111010101101
31000220202220210201022
422010223022322231
5134122324002023
64545125023525
7532012104632
oct120453127255
930822823638
1010815844013
114650297767
12211a254ba5
131034a29c00
14748654189
154348147c8
hex284acaead

10815844013 has 12 divisors (see below), whose sum is σ = 11742802560. Its totient is φ = 9957454416.

The previous prime is 10815844007. The next prime is 10815844021. The reversal of 10815844013 is 31044851801.

10815844013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10815844013 - 224 = 10799066797 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 (10815844003) 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 11 ways as a sum of consecutive naturals, for example, 20381 + ... + 148482.

It is an arithmetic number, because the mean of its divisors is an integer number (978566880).

Almost surely, 210815844013 is an apocalyptic number.

10815844013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10815844013 is a deficient number, since it is larger than the sum of its proper divisors (926958547).

10815844013 is a wasteful number, since it uses less digits than its factorization.

10815844013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169268 (or 169255 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 10815844013 in words is "ten billion, eight hundred fifteen million, eight hundred forty-four thousand, thirteen".

Divisors: 1 13 169 379 4927 64051 168863 2195219 28537847 63999077 831988001 10815844013