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13198361 = 111199851
BaseRepresentation
bin110010010110…
…010000011001
3220211112202012
4302112100121
511334321421
61150515305
7220120121
oct62262031
926745665
1013198361
1174a5140
124505b35
1329715a7
141a77c81
15125a95b
hexc96419

13198361 has 4 divisors (see below), whose sum is σ = 14398224. Its totient is φ = 11998500.

The previous prime is 13198357. The next prime is 13198363. The reversal of 13198361 is 16389131.

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 13198361 - 22 = 13198357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13198363) 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, 599915 + ... + 599936.

It is an arithmetic number, because the mean of its divisors is an integer number (3599556).

Almost surely, 213198361 is an apocalyptic number.

13198361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13198361 is a deficient number, since it is larger than the sum of its proper divisors (1199863).

13198361 is a wasteful number, since it uses less digits than its factorization.

13198361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199862.

The product of its digits is 3888, while the sum is 32.

The square root of 13198361 is about 3632.9548579634. The cubic root of 13198361 is about 236.3233681221.

The spelling of 13198361 in words is "thirteen million, one hundred ninety-eight thousand, three hundred sixty-one".

Divisors: 1 11 1199851 13198361