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198525812 = 22149333097
BaseRepresentation
bin10111101010101…
…00001101110100
3111211120011012212
423311110031310
5401310311222
631411032552
74630304312
oct1365241564
9454504185
10198525812
11a2076421
125659b758
133218c2c4
141c51b0b2
15126676e2
hexbd54374

198525812 has 12 divisors (see below), whose sum is σ = 349752900. Its totient is φ = 98596416.

The previous prime is 198525739. The next prime is 198525823. The reversal of 198525812 is 218525891.

It can be written as a sum of positive squares in 2 ways, for example, as 104939536 + 93586276 = 10244^2 + 9674^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198525812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165953 + ... + 167144.

It is an arithmetic number, because the mean of its divisors is an integer number (29146075).

Almost surely, 2198525812 is an apocalyptic number.

It is an amenable number.

198525812 is a deficient number, since it is larger than the sum of its proper divisors (151227088).

198525812 is a wasteful number, since it uses less digits than its factorization.

198525812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333250 (or 333248 counting only the distinct ones).

The product of its digits is 57600, while the sum is 41.

The square root of 198525812 is about 14089.9188074311. The cubic root of 198525812 is about 583.3631521809.

The spelling of 198525812 in words is "one hundred ninety-eight million, five hundred twenty-five thousand, eight hundred twelve".