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198804001 = 11171063123
BaseRepresentation
bin10111101100110…
…00001000100001
3111212002021211011
423312120020201
5401343212001
631421020521
74632543334
oct1366301041
9455067734
10198804001
11a2246430
12566b4741
1332258b06
141c59061b
15126bed51
hexbd98221

198804001 has 8 divisors (see below), whose sum is σ = 229634784. Its totient is φ = 170099520.

The previous prime is 198803999. The next prime is 198804013. The reversal of 198804001 is 100408891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198804001 - 21 = 198803999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198804061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531375 + ... + 531748.

It is an arithmetic number, because the mean of its divisors is an integer number (28704348).

Almost surely, 2198804001 is an apocalyptic number.

198804001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

198804001 is a deficient number, since it is larger than the sum of its proper divisors (30830783).

198804001 is a wasteful number, since it uses less digits than its factorization.

198804001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063151.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 198804001 is about 14099.7872678988. The cubic root of 198804001 is about 583.6355088202.

The spelling of 198804001 in words is "one hundred ninety-eight million, eight hundred four thousand, one".

Divisors: 1 11 17 187 1063123 11694353 18073091 198804001