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13531201329 = 319237389497
BaseRepresentation
bin11001001101000010…
…11011111100110001
31021221000100020200210
430212201123330301
5210202441420304
610114404334333
7656213212362
oct144641337461
937830306623
1013531201329
115814012918
1227576a43a9
13137845c809
14925123b69
15542dcec89
hex32685bf31

13531201329 has 8 divisors (see below), whose sum is σ = 18991159840. Its totient is φ = 8546021856.

The previous prime is 13531201261. The next prime is 13531201331. The reversal of 13531201329 is 92310213531.

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

It is not a de Polignac number, because 13531201329 - 211 = 13531199281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13531201296 and 13531201305.

It is not an unprimeable number, because it can be changed into a prime (13531201339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118694692 + ... + 118694805.

It is an arithmetic number, because the mean of its divisors is an integer number (2373894980).

Almost surely, 213531201329 is an apocalyptic number.

13531201329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13531201329 is a deficient number, since it is larger than the sum of its proper divisors (5459958511).

13531201329 is a wasteful number, since it uses less digits than its factorization.

13531201329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237389519.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 13531201329 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, three hundred twenty-nine".

Divisors: 1 3 19 57 237389497 712168491 4510400443 13531201329