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198227295 = 3257289899
BaseRepresentation
bin10111101000010…
…11010101011111
3111210222222201200
423310023111133
5401221233140
631400410543
74624622100
oct1364132537
9453888650
10198227295
11a1992112
1256476a53
13320b6476
141c4803a7
1512609030
hexbd0b55f

198227295 has 36 divisors (see below), whose sum is σ = 399695400. Its totient is φ = 90617184.

The previous prime is 198227273. The next prime is 198227321. The reversal of 198227295 is 592722891.

It is a happy number.

It is not a de Polignac number, because 198227295 - 28 = 198227039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 198227295.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42745 + ... + 47154.

It is an arithmetic number, because the mean of its divisors is an integer number (11102650).

Almost surely, 2198227295 is an apocalyptic number.

198227295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198227295 is an abundant number, since it is smaller than the sum of its proper divisors (201468105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198227295 is a wasteful number, since it uses less digits than its factorization.

198227295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89924 (or 89914 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 198227295 is about 14079.3215390515. The cubic root of 198227295 is about 583.0706105811.

The spelling of 198227295 in words is "one hundred ninety-eight million, two hundred twenty-seven thousand, two hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 35 45 49 63 105 147 245 315 441 735 2205 89899 269697 449495 629293 809091 1348485 1887879 3146465 4045455 4405051 5663637 9439395 13215153 22025255 28318185 39645459 66075765 198227295