Search a number
-
+
13289545 = 531831033
BaseRepresentation
bin110010101100…
…100001001001
3221000011211101
4302230201021
511400231140
61152501401
7220650013
oct62544111
927004741
1013289545
1175576a5
12454a861
1329a3c49
141a9d1b3
15127799a
hexcac849

13289545 has 16 divisors (see below), whose sum is σ = 16676352. Its totient is φ = 10154880.

The previous prime is 13289543. The next prime is 13289581. The reversal of 13289545 is 54598231.

It is not a de Polignac number, because 13289545 - 21 = 13289543 is a prime.

It is a super-2 number, since 2×132895452 = 353224012614050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13289543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12349 + ... + 13381.

It is an arithmetic number, because the mean of its divisors is an integer number (1042272).

Almost surely, 213289545 is an apocalyptic number.

It is an amenable number.

13289545 is a deficient number, since it is larger than the sum of its proper divisors (3386807).

13289545 is a wasteful number, since it uses less digits than its factorization.

13289545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 43200, while the sum is 37.

The square root of 13289545 is about 3645.4828212460. The cubic root of 13289545 is about 236.8663515615.

The spelling of 13289545 in words is "thirteen million, two hundred eighty-nine thousand, five hundred forty-five".

Divisors: 1 5 31 83 155 415 1033 2573 5165 12865 32023 85739 160115 428695 2657909 13289545