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13201021771 = 73315697463
BaseRepresentation
bin11000100101101011…
…11001101101001011
31021002000001101111021
430102311321231023
5204013430144041
610021531413311
7645063555640
oct142265715513
937060041437
1013201021771
1156646a6053
122684bb4237
131324c260b2
148d3335dc7
15523e0dcd1
hex312d79b4b

13201021771 has 8 divisors (see below), whose sum is σ = 15132464384. Its totient is φ = 11280974760.

The previous prime is 13201021753. The next prime is 13201021783. The reversal of 13201021771 is 17712010231.

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

It is a cyclic number.

It is not a de Polignac number, because 13201021771 - 219 = 13200497483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201021721) 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, 2846415 + ... + 2851048.

It is an arithmetic number, because the mean of its divisors is an integer number (1891558048).

Almost surely, 213201021771 is an apocalyptic number.

13201021771 is a deficient number, since it is larger than the sum of its proper divisors (1931442613).

13201021771 is an equidigital number, since it uses as much as digits as its factorization.

13201021771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697801.

The product of its (nonzero) digits is 588, while the sum is 25.

The spelling of 13201021771 in words is "thirteen billion, two hundred one million, twenty-one thousand, seven hundred seventy-one".

Divisors: 1 7 331 2317 5697463 39882241 1885860253 13201021771