21229742820
21,229,742,820 is an even composite number composed of five prime numbers multiplied together.
21229742820 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21229742820:
22 × 3 × 5 × 115 × 133
(2 × 2 × 3 × 5 × 11 × 11 × 11 × 11 × 11 × 13 × 13 × 13)See below for interesting mathematical facts about the number 21229742820 from the Numbermatics database.
Names of 21229742820
- Cardinal: 21229742820 can be written as Twenty-one billion, two hundred twenty-nine million, seven hundred forty-two thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.122974282 × 1010
Factors of 21229742820
Divisors of 21229742820
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 10 11 12 13 15 20 22 26 30 33 39 44 52 55 60 65 66 78 110 121 130 132 143 156 165 169 195 220 242 260 286 330 338 363 390 429 484 507 572 605 660 676 715 726 780 845 858 1014 1210 1331 1430 1452 1573 1690 1716 1815 1859 2028 2145 2197 2420 2535 2662 2860 3146 3380 3630 3718 3993 4290 4394 4719 5070 5324 5577 6292 6591 6655 7260 7436 7865 7986 8580 8788 9295 9438 10140 10985 11154 13182 13310 14641 15730 15972 17303 18590 18876 19965 20449 21970 22308 23595 24167 26364 26620 27885 29282 31460 32955 34606 37180 39930 40898 43923 43940 47190 48334 51909 55770 58564 61347 65910 69212 72501 73205 79860 81796 86515 87846 94380 96668 102245 103818 111540 120835 122694 131820 145002 146410 161051 173030 175692 190333 204490 207636 219615 224939 241670 245388 259545 265837 290004 292820 306735 322102 346060 362505 380666 408980 439230 449878 483153 483340 519090 531674 570999 613470 644204 674817 725010 761332 797511 805255 878460 899756 951665 966306 1038180 1063348 1124695 1141998 1226940 1329185 1349634 1450020 1595022 1610510 1903330 1932612 2093663 2249390 2283996 2415765 2474329 2658370 2699268 2854995 2924207 3190044 3221020 3374085 3806660 3987555 4187326 4498780 4831530 4948658 5316740 5709990 5848414 6280989 6748170 7422987 7975110 8374652 8772621 9663060 9897316 10468315 11419980 11696828 12371645 12561978 13496340 14621035 14845974 15950220 17545242 20936630 24743290 25123956 27217619 29242070 29691948 31404945 32166277 35090484 37114935 41873260 43863105 49486580 54435238 58484140 62809890 64332554 74229870 81652857 87726210 96498831 108870476 125619780 128665108 136088095 148459740 160831385 163305714 175452420 192997662 272176190 321662770 326611428 353829047 385995324 408264285 482494155 544352380 643325540 707658094 816528570 964988310 1061487141 1415316188 1633057140 1769145235 1929976620 2122974282 3538290470 4245948564 5307435705 7076580940 10614871410 21229742820
- Sum of all divisors σ(n): 70834055040
- Sum of proper divisors (its aliquot sum) s(n): 49604312220
- 21229742820 is an abundant number, because the sum of its proper divisors (49604312220) is greater than itself. Its abundance is 28374569400
Bases of 21229742820
- Binary: 100111100010110010000101010111001002
- Hexadecimal: 0x4F1642AE4
- Base-36: 9R3N2EC
Squares and roots of 21229742820
- 21229742820 squared (212297428202) is 450701980203341552400
- 21229742820 cubed (212297428203) is 9568287128181672462071553768000
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The
square root of 21229742820 is 145704.2992502279 -
The
cube root of 21229742820 is 2768.9487085213
Scales and comparisons
How big is 21229742820?- 21,229,742,820 seconds is equal to 675 years, 2 weeks, 14 hours, 47 minutes.
-
To count from 1 to 21,229,742,820 would take you about one thousand, three hundred fifty 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 21229742820 cubic inches would be around 230.7 feet tall.
Recreational maths with 21229742820
- 21229742820 backwards is 02824792212
- 21229742820 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21229742820's digits is 39
- More coming soon!
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