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13319693 = 122310891
BaseRepresentation
bin110010110011…
…111000001101
3221001201011222
4302303320031
511402212233
61153253125
7221133632
oct62637015
927051158
1013319693
117578312
1245641a5
1329b489a
141aaa189
151281898
hexcb3e0d

13319693 has 4 divisors (see below), whose sum is σ = 13331808. Its totient is φ = 13307580.

The previous prime is 13319689. The next prime is 13319707. The reversal of 13319693 is 39691331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13319693 - 22 = 13319689 is a prime.

It is a super-2 number, since 2×133196932 = 354828443228498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13319623) 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 3 ways as a sum of consecutive naturals, for example, 4223 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (3332952).

Almost surely, 213319693 is an apocalyptic number.

It is an amenable number.

13319693 is a deficient number, since it is larger than the sum of its proper divisors (12115).

13319693 is a wasteful number, since it uses less digits than its factorization.

13319693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114.

The product of its digits is 13122, while the sum is 35.

The square root of 13319693 is about 3649.6154591957. The cubic root of 13319693 is about 237.0453306919.

The spelling of 13319693 in words is "thirteen million, three hundred nineteen thousand, six hundred ninety-three".

Divisors: 1 1223 10891 13319693