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13198319 = 25035273
BaseRepresentation
bin110010010110…
…001111101111
3220211112200122
4302112033233
511334321234
61150515155
7220120031
oct62261757
926745618
1013198319
1174a5102
124505abb
132971574
141a77c51
15125a92e
hexc963ef

13198319 has 4 divisors (see below), whose sum is σ = 13206096. Its totient is φ = 13190544.

The previous prime is 13198313. The next prime is 13198321. The reversal of 13198319 is 91389131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91389131 = 521175411.

It is a cyclic number.

It is not a de Polignac number, because 13198319 - 28 = 13198063 is a prime.

It is a super-2 number, since 2×131983192 = 348391248851522, 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 (13198313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 5139.

It is an arithmetic number, because the mean of its divisors is an integer number (3301524).

Almost surely, 213198319 is an apocalyptic number.

13198319 is a deficient number, since it is larger than the sum of its proper divisors (7777).

13198319 is an equidigital number, since it uses as much as digits as its factorization.

13198319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776.

The product of its digits is 5832, while the sum is 35.

The square root of 13198319 is about 3632.9490775402. The cubic root of 13198319 is about 236.3231174447.

The spelling of 13198319 in words is "thirteen million, one hundred ninety-eight thousand, three hundred nineteen".

Divisors: 1 2503 5273 13198319