129989650
129,989,650 is an even composite number composed of five prime numbers multiplied together.
129989650 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 129989650:
2 × 52 × 72 × 17 × 3121
(2 × 5 × 5 × 7 × 7 × 17 × 3121)See below for interesting mathematical facts about the number 129989650 from the Numbermatics database.
Names of 129989650
- Cardinal: 129989650 can be written as One hundred twenty-nine million, nine hundred eighty-nine thousand, six hundred fifty.
Scientific notation
- Scientific notation: 1.2998965 × 108
Factors of 129989650
Divisors of 129989650
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 5 7 10 14 17 25 34 35 49 50 70 85 98 119 170 175 238 245 350 425 490 595 833 850 1190 1225 1666 2450 2975 3121 4165 5950 6242 8330 15605 20825 21847 31210 41650 43694 53057 78025 106114 109235 152929 156050 218470 265285 305858 371399 530570 546175 742798 764645 1092350 1326425 1529290 1856995 2599793 2652850 3713990 3823225 5199586 7646450 9284975 12998965 18569950 25997930 64994825 129989650
- Sum of all divisors σ(n): 297894996
- Sum of proper divisors (its aliquot sum) s(n): 167905346
- 129989650 is an abundant number, because the sum of its proper divisors (167905346) is greater than itself. Its abundance is 37915696
Bases of 129989650
- Binary: 1111011111101111100000100102
- Hexadecimal: 0x7BF7C12
- Base-36: 25E4NM
Squares and roots of 129989650
- 129989650 squared (1299896502) is 16897309107122500
- 129989650 cubed (1299896503) is 2196475296776666282125000
-
The
square root of 129989650 is 11401.3003644321 -
The
cube root of 129989650 is 506.5662577073
Scales and comparisons
How big is 129989650?- 129,989,650 seconds is equal to 4 years, 6 weeks, 6 days, 12 hours, 14 minutes, 10 seconds.
-
To count from 1 to 129,989,650 would take you about six years!
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 129989650 cubic inches would be around 42.2 feet tall.
Recreational maths with 129989650
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