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13141809 = 322363487
BaseRepresentation
bin110010001000…
…011100110001
3220201200011200
4302020130301
511331014214
61145401413
7216463212
oct62103461
926650150
1013141809
1174666aa
124499269
132951925
141a61409
151248d09
hexc88731

13141809 has 12 divisors (see below), whose sum is σ = 19808256. Its totient is φ = 8380152.

The previous prime is 13141801. The next prime is 13141819. The reversal of 13141809 is 90814131.

It is not a de Polignac number, because 13141809 - 23 = 13141801 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13141801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31537 + ... + 31950.

It is an arithmetic number, because the mean of its divisors is an integer number (1650688).

Almost surely, 213141809 is an apocalyptic number.

It is an amenable number.

13141809 is a deficient number, since it is larger than the sum of its proper divisors (6666447).

13141809 is a wasteful number, since it uses less digits than its factorization.

13141809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63516 (or 63513 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 13141809 is about 3625.1633066663. The cubic root of 13141809 is about 235.9853541136.

The spelling of 13141809 in words is "thirteen million, one hundred forty-one thousand, eight hundred nine".

Divisors: 1 3 9 23 69 207 63487 190461 571383 1460201 4380603 13141809