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198441230 = 251331411201
BaseRepresentation
bin10111101001111…
…11100100001110
3111211101212012012
423310333210032
5401300104410
631405141222
74626502601
oct1364774416
9454355165
10198441230
11a2018919
125655a812
133215c960
141c4d8338
151264c605
hexbd3f90e

198441230 has 64 divisors (see below), whose sum is σ = 407102976. Its totient is φ = 69120000.

The previous prime is 198441211. The next prime is 198441239. The reversal of 198441230 is 32144891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198441239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164630 + ... + 165830.

It is an arithmetic number, because the mean of its divisors is an integer number (6360984).

Almost surely, 2198441230 is an apocalyptic number.

198441230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198441230 is an abundant number, since it is smaller than the sum of its proper divisors (208661746).

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

198441230 is a wasteful number, since it uses less digits than its factorization.

198441230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 198441230 is about 14086.9169799499. The cubic root of 198441230 is about 583.2802930459.

The spelling of 198441230 in words is "one hundred ninety-eight million, four hundred forty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 31 41 62 65 82 130 155 205 310 403 410 533 806 1066 1201 1271 2015 2402 2542 2665 4030 5330 6005 6355 12010 12710 15613 16523 31226 33046 37231 49241 74462 78065 82615 98482 156130 165230 186155 246205 372310 484003 492410 640133 968006 1280266 1526471 2420015 3052942 3200665 4840030 6401330 7632355 15264710 19844123 39688246 99220615 198441230