21358875720
21,358,875,720 is an even composite number composed of seven prime numbers multiplied together.
21358875720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21358875720:
23 × 3 × 5 × 7 × 132 × 43 × 3499
(2 × 2 × 2 × 3 × 5 × 7 × 13 × 13 × 43 × 3499)See below for interesting mathematical facts about the number 21358875720 from the Numbermatics database.
Names of 21358875720
- Cardinal: 21358875720 can be written as Twenty-one billion, three hundred fifty-eight million, eight hundred seventy-five thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.135887572 × 1010
Factors of 21358875720
Divisors of 21358875720
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 13 14 15 20 21 24 26 28 30 35 39 40 42 43 52 56 60 65 70 78 84 86 91 104 105 120 129 130 140 156 168 169 172 182 195 210 215 258 260 273 280 301 312 338 344 364 390 420 430 455 507 516 520 546 559 602 645 676 728 780 840 845 860 903 910 1014 1032 1092 1118 1183 1204 1290 1352 1365 1505 1560 1677 1690 1720 1806 1820 2028 2184 2236 2366 2408 2535 2580 2730 2795 3010 3354 3380 3499 3549 3612 3640 3913 4056 4472 4515 4732 5070 5160 5460 5590 5915 6020 6708 6760 6998 7098 7224 7267 7826 8385 9030 9464 10140 10497 10920 11180 11739 11830 12040 13416 13996 14196 14534 15652 16770 17495 17745 18060 19565 20280 20994 21801 22360 23478 23660 24493 27992 28392 29068 31304 33540 34990 35490 36120 36335 39130 41988 43602 45487 46956 47320 48986 50869 52485 58136 58695 67080 69980 70980 72670 73479 78260 83976 87204 90974 93912 97972 101738 104970 109005 117390 122465 136461 139960 141960 145340 146958 150457 152607 156520 174408 181948 195944 203476 209940 218010 227435 234780 244930 254345 272922 290680 293916 300914 305214 318409 363896 367395 406952 419880 436020 451371 454870 469560 489860 508690 545844 587832 591331 601828 610428 636818 682305 734790 752285 763035 872040 902742 909740 955227 979720 1017380 1053199 1091688 1182662 1203656 1220856 1273636 1364610 1469580 1504570 1526070 1592045 1773993 1805484 1819480 1910454 1955941 2034760 2106398 2256855 2365324 2547272 2729220 2939160 2956655 3009140 3052140 3159597 3184090 3547986 3610968 3820908 3911882 4139317 4212796 4513710 4730648 4776135 5265995 5458440 5867823 5913310 6018280 6104280 6319194 6368180 7095972 7641816 7823764 8278634 8425592 8869965 9027420 9552270 9779705 10531990 11735646 11826620 12417951 12638388 12736360 13691587 14191944 15647528 15797985 16557268 17739930 18054840 19104540 19559410 20696585 21063980 23471292 23653240 24835902 25276776 25427233 27383174 29339115 31595970 33114536 35479860 38209080 39118820 41074761 41393170 42127960 46942584 49671804 50854466 54766348 58678230 62089755 63191940 68457935 70959720 76281699 78237640 82149522 82786340 99343608 101708932 109532696 117356460 124179510 126383880 127136165 136915870 152563398 164299044 165572680 177990631 203417864 205373805 234712920 248359020 254272330 273831740 305126796 328598088 355981262 381408495 410747610 496718040 508544660 533971893 547663480 610253592 711962524 762816990 821495220 889953155 1017089320 1067943786 1423925048 1525633980 1642990440 1779906310 2135887572 2669859465 3051267960 3559812620 4271775144 5339718930 7119625240 10679437860 21358875720
- Sum of all divisors σ(n): 81164160000
- Sum of proper divisors (its aliquot sum) s(n): 59805284280
- 21358875720 is an abundant number, because the sum of its proper divisors (59805284280) is greater than itself. Its abundance is 38446408560
Bases of 21358875720
- Binary: 100111110010001011010010100010010002
- Hexadecimal: 0x4F9169448
- Base-36: 9T8ITZC
Squares and roots of 21358875720
- 21358875720 squared (213588757202) is 456201572022405518400
- 21358875720 cubed (213588757203) is 9743952680095188522947773248000
-
The
square root of 21358875720 is 146146.7608946569 -
The
cube root of 21358875720 is 2774.5515373005
Scales and comparisons
How big is 21358875720?- 21,358,875,720 seconds is equal to 679 years, 7 weeks, 4 days, 5 hours, 2 minutes.
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To count from 1 to 21,358,875,720 would take you about one thousand, three hundred fifty-eight 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 21358875720 cubic inches would be around 231.2 feet tall.
Recreational maths with 21358875720
- 21358875720 backwards is 02757885312
- The number of decimal digits it has is: 11
- The sum of 21358875720's digits is 48
- More coming soon!
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