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13104331444420 = 225655216572221
BaseRepresentation
bin1011111010110001011100…
…0001010101000011000100
31201101202120101112001020121
42332230113001111003010
53204200132322210140
643512014033311324
72521520356265626
oct276542701250304
951352511461217
1013104331444420
1141a2574520127
12157785a105544
1374096b976908
14334378436c16
1517ad18cb764a
hexbeb170550c4

13104331444420 has 12 divisors (see below), whose sum is σ = 27519096033324. Its totient is φ = 5241732577760.

The previous prime is 13104331444381. The next prime is 13104331444429. The reversal of 13104331444420 is 2444413340131.

It can be written as a sum of positive squares in 2 ways, for example, as 1582760254084 + 11521571190336 = 1258078^2 + 3394344^2 .

It is not an unprimeable number, because it can be changed into a prime (13104331444429) 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, 327608286091 + ... + 327608286130.

It is an arithmetic number, because the mean of its divisors is an integer number (2293258002777).

Almost surely, 213104331444420 is an apocalyptic number.

13104331444420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13104331444420 is an abundant number, since it is smaller than the sum of its proper divisors (14414764588904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13104331444420 is a wasteful number, since it uses less digits than its factorization.

13104331444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655216572230 (or 655216572228 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 13104331444420 its reverse (2444413340131), we get a palindrome (15548744784551).

The spelling of 13104331444420 in words is "thirteen trillion, one hundred four billion, three hundred thirty-one million, four hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 655216572221 1310433144442 2620866288884 3276082861105 6552165722210 13104331444420