121229920
121,229,920 is an even composite number composed of four prime numbers multiplied together.
121229920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 121229920:
25 × 5 × 73 × 472
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 47 × 47)See below for interesting mathematical facts about the number 121229920 from the Numbermatics database.
Names of 121229920
- Cardinal: 121229920 can be written as One hundred twenty-one million, two hundred twenty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.2122992 × 108
Factors of 121229920
Divisors of 121229920
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 47 49 56 70 80 94 98 112 140 160 188 196 224 235 245 280 329 343 376 392 470 490 560 658 686 752 784 940 980 1120 1316 1372 1504 1568 1645 1715 1880 1960 2209 2303 2632 2744 3290 3430 3760 3920 4418 4606 5264 5488 6580 6860 7520 7840 8836 9212 10528 10976 11045 11515 13160 13720 15463 16121 17672 18424 22090 23030 26320 27440 30926 32242 35344 36848 44180 46060 52640 54880 61852 64484 70688 73696 77315 80605 88360 92120 108241 123704 128968 154630 161210 176720 184240 216482 247408 257936 309260 322420 353440 368480 432964 494816 515872 541205 618520 644840 757687 865928 1082410 1237040 1289680 1515374 1731856 2164820 2474080 2579360 3030748 3463712 3788435 4329640 6061496 7576870 8659280 12122992 15153740 17318560 24245984 30307480 60614960 121229920
- Sum of all divisors σ(n): 341258400
- Sum of proper divisors (its aliquot sum) s(n): 220028480
- 121229920 is an abundant number, because the sum of its proper divisors (220028480) is greater than itself. Its abundance is 98798560
Bases of 121229920
- Binary: 1110011100111010010011000002
- Hexadecimal: 0x739D260
- Base-36: 206DLS
Squares and roots of 121229920
- 121229920 squared (1212299202) is 14696693503206400
- 121229920 cubed (1212299203) is 1781678977658231615488000
-
The
square root of 121229920 is 11010.4459491885 -
The
cube root of 121229920 is 494.9218255625
Scales and comparisons
How big is 121229920?- 121,229,920 seconds is equal to 3 years, 44 weeks, 3 days, 2 hours, 58 minutes, 40 seconds.
-
To count from 1 to 121,229,920 would take you about five 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 121229920 cubic inches would be around 41.2 feet tall.
Recreational maths with 121229920
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