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13291369 = 713146059
BaseRepresentation
bin110010101100…
…111101101001
3221000021022221
4302230331221
511400310434
61152514041
7220655230
oct62547551
927007287
1013291369
117559003
12454b921
1329a4a20
141a9db17
1512782b4
hexcacf69

13291369 has 8 divisors (see below), whose sum is σ = 16358720. Its totient is φ = 10516176.

The previous prime is 13291361. The next prime is 13291379. The reversal of 13291369 is 96319231.

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 13291369 - 23 = 13291361 is a prime.

It is a super-2 number, since 2×132913692 = 353320979788322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13291361) 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, 72939 + ... + 73120.

It is an arithmetic number, because the mean of its divisors is an integer number (2044840).

Almost surely, 213291369 is an apocalyptic number.

It is an amenable number.

13291369 is a deficient number, since it is larger than the sum of its proper divisors (3067351).

13291369 is a wasteful number, since it uses less digits than its factorization.

13291369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146079.

The product of its digits is 8748, while the sum is 34.

The square root of 13291369 is about 3645.7329852857. The cubic root of 13291369 is about 236.8771877604.

The spelling of 13291369 in words is "thirteen million, two hundred ninety-one thousand, three hundred sixty-nine".

Divisors: 1 7 13 91 146059 1022413 1898767 13291369