12998440
12,998,440 is an even composite number composed of five prime numbers multiplied together.
12998440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 12998440:
23 × 5 × 7 × 13 × 3571
(2 × 2 × 2 × 5 × 7 × 13 × 3571)See below for interesting mathematical facts about the number 12998440 from the Numbermatics database.
Names of 12998440
- Cardinal: 12998440 can be written as Twelve million, nine hundred ninety-eight thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.299844 × 107
Factors of 12998440
Divisors of 12998440
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3571 3640 7142 14284 17855 24997 28568 35710 46423 49994 71420 92846 99988 124985 142840 185692 199976 232115 249970 324961 371384 464230 499940 649922 928460 999880 1299844 1624805 1856920 2599688 3249610 6499220 12998440
- Sum of all divisors σ(n): 36005760
- Sum of proper divisors (its aliquot sum) s(n): 23007320
- 12998440 is an abundant number, because the sum of its proper divisors (23007320) is greater than itself. Its abundance is 10008880
Bases of 12998440
- Binary: 1100011001010111001010002
- Hexadecimal: 0xC65728
- Base-36: 7QLNS
Squares and roots of 12998440
- 12998440 squared (129984402) is 168959442433600
- 12998440 cubed (129984403) is 2196209174906603584000
-
The
square root of 12998440 is 3605.3349358971 -
The
cube root of 12998440 is 235.1240630571
Scales and comparisons
How big is 12998440?- 12,998,440 seconds is equal to 21 weeks, 3 days, 10 hours, 40 minutes, 40 seconds.
-
To count from 1 to 12,998,440 would take you about thirty-two weeks!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 12998440 cubic inches would be around 19.6 feet tall.
Recreational maths with 12998440
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