Search a number
-
+
198833397 = 379468257
BaseRepresentation
bin10111101100111…
…11010011110101
3111212010210010220
423312133103311
5401400132042
631421404553
74633025130
oct1366372365
9455123126
10198833397
11a2266524
1256709759
13322692c9
141c59b217
15126c88ec
hexbd9f4f5

198833397 has 8 divisors (see below), whose sum is σ = 302984256. Its totient is φ = 113619072.

The previous prime is 198833381. The next prime is 198833407. The reversal of 198833397 is 793338891.

It is a happy number.

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

It is not a de Polignac number, because 198833397 - 24 = 198833381 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198833357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4734108 + ... + 4734149.

It is an arithmetic number, because the mean of its divisors is an integer number (37873032).

Almost surely, 2198833397 is an apocalyptic number.

It is an amenable number.

198833397 is a deficient number, since it is larger than the sum of its proper divisors (104150859).

198833397 is an equidigital number, since it uses as much as digits as its factorization.

198833397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9468267.

The product of its digits is 979776, while the sum is 51.

The square root of 198833397 is about 14100.8296564422. The cubic root of 198833397 is about 583.6642736737.

The spelling of 198833397 in words is "one hundred ninety-eight million, eight hundred thirty-three thousand, three hundred ninety-seven".

Divisors: 1 3 7 21 9468257 28404771 66277799 198833397