12997920
12,997,920 is an even composite number composed of five prime numbers multiplied together.
12997920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 12997920:
25 × 3 × 5 × 13 × 2083
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 2083)See below for interesting mathematical facts about the number 12997920 from the Numbermatics database.
Names of 12997920
- Cardinal: 12997920 can be written as Twelve million, nine hundred ninety-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.299792 × 107
Factors of 12997920
Divisors of 12997920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 2083 3120 4166 6240 6249 8332 10415 12498 16664 20830 24996 27079 31245 33328 41660 49992 54158 62490 66656 81237 83320 99984 108316 124980 135395 162474 166640 199968 216632 249960 270790 324948 333280 406185 433264 499920 541580 649896 812370 866528 999840 1083160 1299792 1624740 2166320 2599584 3249480 4332640 6498960 12997920
- Sum of all divisors σ(n): 44114112
- Sum of proper divisors (its aliquot sum) s(n): 31116192
- 12997920 is an abundant number, because the sum of its proper divisors (31116192) is greater than itself. Its abundance is 18118272
Bases of 12997920
- Binary: 1100011001010101001000002
- Hexadecimal: 0xC65520
- Base-36: 7QL9C
Squares and roots of 12997920
- 12997920 squared (129979202) is 168945924326400
- 12997920 cubed (129979203) is 2195945608720601088000
-
The
square root of 12997920 is 3605.2628198233 -
The
cube root of 12997920 is 235.1209276515
Scales and comparisons
How big is 12997920?- 12,997,920 seconds is equal to 21 weeks, 3 days, 10 hours, 32 minutes.
-
To count from 1 to 12,997,920 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 12997920 cubic inches would be around 19.6 feet tall.
Recreational maths with 12997920
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