21381022440
21,381,022,440 is an even composite number composed of five prime numbers multiplied together.
21381022440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21381022440:
23 × 34 × 5 × 433 × 83
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 43 × 43 × 43 × 83)See below for interesting mathematical facts about the number 21381022440 from the Numbermatics database.
Names of 21381022440
- Cardinal: 21381022440 can be written as Twenty-one billion, three hundred eighty-one million, twenty-two thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.138102244 × 1010
Factors of 21381022440
Divisors of 21381022440
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 43 45 54 60 72 81 83 86 90 108 120 129 135 162 166 172 180 215 216 249 258 270 324 332 344 360 387 405 415 430 498 516 540 645 648 664 747 774 810 830 860 996 1032 1080 1161 1245 1290 1494 1548 1620 1660 1720 1849 1935 1992 2241 2322 2490 2580 2988 3096 3240 3320 3483 3569 3698 3735 3870 4482 4644 4980 5160 5547 5805 5976 6723 6966 7138 7396 7470 7740 8964 9245 9288 9960 10707 11094 11205 11610 13446 13932 14276 14792 14940 15480 16641 17415 17845 17928 18490 21414 22188 22410 23220 26892 27735 27864 28552 29880 32121 33282 33615 34830 35690 36980 42828 44376 44820 46440 49923 53535 53784 55470 64242 66564 67230 69660 71380 73960 79507 83205 85656 89640 96363 99846 107070 110940 128484 133128 134460 139320 142760 149769 153467 159014 160605 166410 192726 199692 214140 221880 238521 249615 256968 268920 289089 299538 306934 318028 321210 332820 385452 397535 399384 428280 460401 477042 481815 499230 578178 599076 613868 636056 642420 665640 715563 748845 767335 770904 795070 920802 954084 963630 998460 1156356 1192605 1198152 1227736 1284840 1381203 1431126 1445445 1497690 1534670 1590140 1841604 1908168 1927260 1996920 2146689 2302005 2312712 2385210 2762406 2862252 2890890 2995380 3069340 3180280 3577815 3683208 3854520 4143609 4293378 4604010 4770420 5524812 5724504 5781780 5990760 6138680 6440067 6599081 6906015 7155630 8287218 8586756 9208020 9540840 10733445 11049624 11563560 12430827 12880134 13198162 13812030 14311260 16574436 17173512 18416040 19797243 20718045 21466890 24861654 25760268 26396324 27624060 28622520 32200335 32995405 33148872 39594486 41436090 42933780 49723308 51520536 52792648 55248120 59391729 62154135 64400670 65990810 79188972 82872180 85867560 98986215 99446616 118783458 124308270 128801340 131981620 158377944 165744360 178175187 197972430 237566916 248616540 257602680 263963240 296958645 356350374 395944860 475133832 497233080 534525561 593917290 712700748 791889720 890875935 1069051122 1187834580 1425401496 1781751870 2138102244 2375669160 2672627805 3563503740 4276204488 5345255610 7127007480 10690511220 21381022440
- Sum of all divisors σ(n): 74461464000
- Sum of proper divisors (its aliquot sum) s(n): 53080441560
- 21381022440 is an abundant number, because the sum of its proper divisors (53080441560) is greater than itself. Its abundance is 31699419120
Bases of 21381022440
- Binary: 100111110100110100010000010111010002
- Hexadecimal: 0x4FA6882E8
- Base-36: 9TLPII0
Squares and roots of 21381022440
- 21381022440 squared (213810224402) is 457148120579783553600
- 21381022440 cubed (213810224403) is 9774294224520177969864542784000
-
The
square root of 21381022440 is 146222.5100318005 -
The
cube root of 21381022440 is 2775.5101706283
Scales and comparisons
How big is 21381022440?- 21,381,022,440 seconds is equal to 679 years, 44 weeks, 1 day, 12 hours, 54 minutes.
-
To count from 1 to 21,381,022,440 would take you about one thousand, three hundred fifty-nine 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 21381022440 cubic inches would be around 231.3 feet tall.
Recreational maths with 21381022440
- 21381022440 backwards is 04422018312
- 21381022440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21381022440's digits is 27
- More coming soon!
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