129990438720
129,990,438,720 is an even composite number composed of five prime numbers multiplied together.
129990438720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 129990438720:
26 × 32 × 5 × 659 × 68491
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 659 × 68491)See below for interesting mathematical facts about the number 129990438720 from the Numbermatics database.
Names of 129990438720
- Cardinal: 129990438720 can be written as One hundred twenty-nine billion, nine hundred ninety million, four hundred thirty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2999043872 × 1011
Factors of 129990438720
Divisors of 129990438720
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 659 720 960 1318 1440 1977 2636 2880 3295 3954 5272 5931 6590 7908 9885 10544 11862 13180 15816 19770 21088 23724 26360 29655 31632 39540 42176 47448 52720 59310 63264 68491 79080 94896 105440 118620 126528 136982 158160 189792 205473 210880 237240 273964 316320 342455 379584 410946 474480 547928 616419 632640 684910 821892 948960 1027365 1095856 1232838 1369820 1643784 1897920 2054730 2191712 2465676 2739640 3082095 3287568 4109460 4383424 4931352 5479280 6164190 6575136 8218920 9862704 10958560 12328380 13150272 16437840 19725408 21917120 24656760 32875680 39450816 45135569 49313520 65751360 90271138 98627040 135406707 180542276 197254080 225677845 270813414 361084552 406220121 451355690 541626828 677033535 722169104 812440242 902711380 1083253656 1354067070 1444338208 1624880484 1805422760 2031100605 2166507312 2708134140 2888676416 3249760968 3610845520 4062201210 4333014624 5416268280 6499521936 7221691040 8124402420 8666029248 10832536560 12999043872 14443382080 16248804840 21665073120 25998087744 32497609680 43330146240 64995219360 129990438720
- Sum of all divisors σ(n): 447797956320
- Sum of proper divisors (its aliquot sum) s(n): 317807517600
- 129990438720 is an abundant number, because the sum of its proper divisors (317807517600) is greater than itself. Its abundance is 187817078880
Bases of 129990438720
- Binary: 11110010001000000100010101111010000002
- Hexadecimal: 0x1E4408AF40
- Base-36: 1NPSY8G0
Squares and roots of 129990438720
- 129990438720 squared (1299904387202) is 16897514158618075238400
- 129990438720 cubed (1299904387203) is 2196515278756175269161584590848000
-
The
square root of 129990438720 is 360541.8681928633 -
The
cube root of 129990438720 is 5065.6728224567
Scales and comparisons
How big is 129990438720?- 129,990,438,720 seconds is equal to 4,133 years, 15 weeks, 1 day, 23 hours, 12 minutes.
-
To count from 1 to 129,990,438,720 would take you about eight thousand, two hundred sixty-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 129990438720 cubic inches would be around 422.1 feet tall.
Recreational maths with 129990438720
- 129990438720 backwards is 027834099921
- The number of decimal digits it has is: 12
- The sum of 129990438720's digits is 54
- More coming soon!
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