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198038341 = 981720173
BaseRepresentation
bin10111100110111…
…01001101000101
3111210122101112101
423303131031011
5401144211331
631352352101
74623204154
oct1363351505
9453571471
10198038341
11a1873156
12563a5631
133204b467
141c43159b
15125bd061
hexbcdd345

198038341 has 4 divisors (see below), whose sum is σ = 198068332. Its totient is φ = 198008352.

The previous prime is 198038299. The next prime is 198038353. The reversal of 198038341 is 143830891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143830891 = 236253517.

It can be written as a sum of positive squares in 2 ways, for example, as 197290116 + 748225 = 14046^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 198038341 - 227 = 63820613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198038341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198038381) 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, 270 + ... + 19903.

It is an arithmetic number, because the mean of its divisors is an integer number (49517083).

Almost surely, 2198038341 is an apocalyptic number.

It is an amenable number.

198038341 is a deficient number, since it is larger than the sum of its proper divisors (29991).

198038341 is an equidigital number, since it uses as much as digits as its factorization.

198038341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29990.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 198038341 is about 14072.6096016339. The cubic root of 198038341 is about 582.8852870460.

The spelling of 198038341 in words is "one hundred ninety-eight million, thirty-eight thousand, three hundred forty-one".

Divisors: 1 9817 20173 198038341