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198485023 = 1197118583
BaseRepresentation
bin10111101010010…
…10010000011111
3111211111002021011
423311022100133
5401303010043
631410120051
74630044352
oct1365122037
9454432234
10198485023
11a2048810
1256580027
1332176879
141c50a299
151265a59d
hexbd4a41f

198485023 has 8 divisors (see below), whose sum is σ = 216763776. Its totient is φ = 180245400.

The previous prime is 198484991. The next prime is 198485093. The reversal of 198485023 is 320584891.

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 198485023 - 25 = 198484991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198485093) 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, 1390 + ... + 19972.

It is an arithmetic number, because the mean of its divisors is an integer number (27095472).

Almost surely, 2198485023 is an apocalyptic number.

198485023 is a deficient number, since it is larger than the sum of its proper divisors (18278753).

198485023 is a wasteful number, since it uses less digits than its factorization.

198485023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19565.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 198485023 is about 14088.4712797379. The cubic root of 198485023 is about 583.3231969577.

The spelling of 198485023 in words is "one hundred ninety-eight million, four hundred eighty-five thousand, twenty-three".

Divisors: 1 11 971 10681 18583 204413 18044093 198485023