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198880108 = 22717341057
BaseRepresentation
bin10111101101010…
…10101101101100
3111212020011012221
423312222231230
5401403130413
631422405124
74633311250
oct1366525554
9455204187
10198880108
11a2298629
12567307a4
133228464b
141c5b0260
15126d768d
hexbdaab6c

198880108 has 24 divisors (see below), whose sum is σ = 400069152. Its totient is φ = 84739584.

The previous prime is 198880079. The next prime is 198880109. The reversal of 198880108 is 801088891.

It is not an unprimeable number, because it can be changed into a prime (198880109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15685 + ... + 25372.

It is an arithmetic number, because the mean of its divisors is an integer number (16669548).

Almost surely, 2198880108 is an apocalyptic number.

It is an amenable number.

198880108 is an abundant number, since it is smaller than the sum of its proper divisors (201189044).

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

198880108 is a wasteful number, since it uses less digits than its factorization.

198880108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41241 (or 41239 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 198880108 is about 14102.4858801560. The cubic root of 198880108 is about 583.7099759343.

The spelling of 198880108 in words is "one hundred ninety-eight million, eight hundred eighty thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 173 346 692 1211 2422 4844 41057 82114 164228 287399 574798 1149596 7102861 14205722 28411444 49720027 99440054 198880108