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198439060 = 22531320063
BaseRepresentation
bin10111101001111…
…11000010010100
3111211101202012211
423310333002110
5401300022220
631405123204
74626463351
oct1364770224
9454352184
10198439060
11a2017226
1256559504
133215b981
141c4d7628
151264bb5a
hexbd3f094

198439060 has 24 divisors (see below), whose sum is σ = 430166016. Its totient is φ = 76814880.

The previous prime is 198439027. The next prime is 198439061. The reversal of 198439060 is 60934891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198439061) 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, 159412 + ... + 160651.

It is an arithmetic number, because the mean of its divisors is an integer number (17923584).

Almost surely, 2198439060 is an apocalyptic number.

198439060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198439060 is an abundant number, since it is smaller than the sum of its proper divisors (231726956).

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

198439060 is a wasteful number, since it uses less digits than its factorization.

198439060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320103 (or 320101 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 198439060 is about 14086.8399579182. The cubic root of 198439060 is about 583.2781669372.

The spelling of 198439060 in words is "one hundred ninety-eight million, four hundred thirty-nine thousand, sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 320063 640126 1280252 1600315 3200630 6401260 9921953 19843906 39687812 49609765 99219530 198439060