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198244260 = 2236513597
BaseRepresentation
bin10111101000011…
…11011110100100
3111211000212000000
423310033132210
5401222304020
631401021300
74625022414
oct1364173644
9454025000
10198244260
11a19a3935
1256484830
13320c10c6
141c486644
151260e090
hexbd0f7a4

198244260 has 84 divisors (see below), whose sum is σ = 624229788. Its totient is φ = 52861248.

The previous prime is 198244243. The next prime is 198244273. The reversal of 198244260 is 62442891.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 156950784 = 6426^2 + 12528^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7782 + ... + 21378.

It is an arithmetic number, because the mean of its divisors is an integer number (7431307).

Almost surely, 2198244260 is an apocalyptic number.

198244260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198244260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312114894).

198244260 is an abundant number, since it is smaller than the sum of its proper divisors (425985528).

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

198244260 is a wasteful number, since it uses less digits than its factorization.

198244260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13607 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 198244260 is about 14079.9240054767. The cubic root of 198244260 is about 583.0872438618.

The spelling of 198244260 in words is "one hundred ninety-eight million, two hundred forty-four thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 729 810 972 1215 1458 1620 2430 2916 3645 4860 7290 13597 14580 27194 40791 54388 67985 81582 122373 135970 163164 203955 244746 271940 367119 407910 489492 611865 734238 815820 1101357 1223730 1468476 1835595 2202714 2447460 3304071 3671190 4405428 5506785 6608142 7342380 9912213 11013570 13216284 16520355 19824426 22027140 33040710 39648852 49561065 66081420 99122130 198244260