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198380200 = 2352991901
BaseRepresentation
bin10111101001100…
…00101010101000
3111211021202110211
423310300222220
5401241131300
631403550504
74626126634
oct1364605250
9454252424
10198380200
11a1a86a87
125652b434
133213ac45
141c4bddc4
15126394ba
hexbd30aa8

198380200 has 24 divisors (see below), whose sum is σ = 461234430. Its totient is φ = 79352000.

The previous prime is 198380183. The next prime is 198380207. The reversal of 198380200 is 2083891.

It can be written as a sum of positive squares in 3 ways, for example, as 161340804 + 37039396 = 12702^2 + 6086^2 .

It is not an unprimeable number, because it can be changed into a prime (198380207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495751 + ... + 496150.

Almost surely, 2198380200 is an apocalyptic number.

198380200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198380200 is an abundant number, since it is smaller than the sum of its proper divisors (262854230).

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

198380200 is a wasteful number, since it uses less digits than its factorization.

198380200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991917 (or 991908 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 198380200 is about 14084.7506190206. The cubic root of 198380200 is about 583.2204915516.

The spelling of 198380200 in words is "one hundred ninety-eight million, three hundred eighty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 991901 1983802 3967604 4959505 7935208 9919010 19838020 24797525 39676040 49595050 99190100 198380200