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13506295289 = 137850111597
BaseRepresentation
bin11001001010000100…
…11011010111111001
31021212021110220000212
430211002123113321
5210130102422124
610112114440505
7655461421124
oct144502332771
937767426025
1013506295289
115800a51613
12274b293135
13137324c306
14921abd3bb
15540b1040e
hex32509b5f9

13506295289 has 8 divisors (see below), whose sum is σ = 13607655048. Its totient is φ = 13404976000.

The previous prime is 13506295261. The next prime is 13506295291. The reversal of 13506295289 is 98259260531.

It can be written as a sum of positive squares in 4 ways, for example, as 2101764025 + 11404531264 = 45845^2 + 106792^2 .

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 13506295289 - 216 = 13506229753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13506295189) 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, 1158839 + ... + 1170435.

It is an arithmetic number, because the mean of its divisors is an integer number (1700956881).

Almost surely, 213506295289 is an apocalyptic number.

It is an amenable number.

13506295289 is a deficient number, since it is larger than the sum of its proper divisors (101359759).

13506295289 is a wasteful number, since it uses less digits than its factorization.

13506295289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20235.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 13506295289 in words is "thirteen billion, five hundred six million, two hundred ninety-five thousand, two hundred eighty-nine".

Divisors: 1 137 8501 11597 1164637 1588789 98586097 13506295289