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13269487 = 711172331
BaseRepresentation
bin110010100111…
…100111101111
3220222011022111
4302213213233
511344110422
61152224451
7220534360
oct62474757
926864274
1013269487
117543620
12453b127
132997a8a
141a95b67
151271a77
hexca79ef

13269487 has 8 divisors (see below), whose sum is σ = 16543872. Its totient is φ = 10339800.

The previous prime is 13269439. The next prime is 13269511. The reversal of 13269487 is 78496231.

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 13269487 - 215 = 13236719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13269407) 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, 86089 + ... + 86242.

It is an arithmetic number, because the mean of its divisors is an integer number (2067984).

Almost surely, 213269487 is an apocalyptic number.

13269487 is a deficient number, since it is larger than the sum of its proper divisors (3274385).

13269487 is a wasteful number, since it uses less digits than its factorization.

13269487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172349.

The product of its digits is 72576, while the sum is 40.

The square root of 13269487 is about 3642.7307064893. The cubic root of 13269487 is about 236.7471235629.

The spelling of 13269487 in words is "thirteen million, two hundred sixty-nine thousand, four hundred eighty-seven".

Divisors: 1 7 11 77 172331 1206317 1895641 13269487