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13319969 = 131953927
BaseRepresentation
bin110010110011…
…111100100001
3221001201120012
4302303330201
511402214334
61153254305
7221134505
oct62637441
927051505
1013319969
117578543
124564395
1329b4a50
141aaa305
1512819ce
hexcb3f21

13319969 has 8 divisors (see below), whose sum is σ = 15099840. Its totient is φ = 11648016.

The previous prime is 13319951. The next prime is 13319989. The reversal of 13319969 is 96991331.

13319969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13319969 is a prime.

It is a super-2 number, since 2×133199692 = 354843148321922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13319939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26717 + ... + 27210.

It is an arithmetic number, because the mean of its divisors is an integer number (1887480).

Almost surely, 213319969 is an apocalyptic number.

13319969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13319969 is a deficient number, since it is larger than the sum of its proper divisors (1779871).

13319969 is a wasteful number, since it uses less digits than its factorization.

13319969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53959.

The product of its digits is 39366, while the sum is 41.

The square root of 13319969 is about 3649.6532712026. The cubic root of 13319969 is about 237.0469679683.

It can be divided in two parts, 133 and 19969, that added together give a palindrome (20102).

The spelling of 13319969 in words is "thirteen million, three hundred nineteen thousand, nine hundred sixty-nine".

Divisors: 1 13 19 247 53927 701051 1024613 13319969