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13269249 = 327230089
BaseRepresentation
bin110010100111…
…100100000001
3220222010222200
4302213210001
511344103444
61152223413
7220533600
oct62474401
926863880
1013269249
117543424
12453ab69
132997936
141a95a37
151271969
hexca7901

13269249 has 18 divisors (see below), whose sum is σ = 22296690. Its totient is φ = 7582176.

The previous prime is 13269247. The next prime is 13269259. The reversal of 13269249 is 94296231.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 1979649 = 3360^2 + 1407^2 .

It is not a de Polignac number, because 13269249 - 21 = 13269247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13269247) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14604 + ... + 15485.

It is an arithmetic number, because the mean of its divisors is an integer number (1238705).

Almost surely, 213269249 is an apocalyptic number.

It is an amenable number.

13269249 is a deficient number, since it is larger than the sum of its proper divisors (9027441).

13269249 is a wasteful number, since it uses less digits than its factorization.

13269249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30109 (or 30099 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 13269249 is about 3642.6980385423. The cubic root of 13269249 is about 236.7457081313.

The spelling of 13269249 in words is "thirteen million, two hundred sixty-nine thousand, two hundred forty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 30089 90267 210623 270801 631869 1474361 1895607 4423083 13269249