21012459840
21,012,459,840 is an even composite number composed of six prime numbers multiplied together.
21012459840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 21012459840:
26 × 32 × 5 × 37 × 293 × 673
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 37 × 293 × 673)See below for interesting mathematical facts about the number 21012459840 from the Numbermatics database.
Names of 21012459840
- Cardinal: 21012459840 can be written as Twenty-one billion, twelve million, four hundred fifty-nine thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.101245984 × 1010
Factors of 21012459840
Divisors of 21012459840
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 37 40 45 48 60 64 72 74 80 90 96 111 120 144 148 160 180 185 192 222 240 288 293 296 320 333 360 370 444 480 555 576 586 592 666 673 720 740 879 888 960 1110 1172 1184 1332 1346 1440 1465 1480 1665 1758 1776 2019 2220 2344 2368 2637 2664 2692 2880 2930 2960 3330 3365 3516 3552 4038 4395 4440 4688 5274 5328 5384 5860 5920 6057 6660 6730 7032 7104 8076 8790 8880 9376 10095 10548 10656 10768 10841 11720 11840 12114 13185 13320 13460 14064 16152 17580 17760 18752 20190 21096 21312 21536 21682 23440 24228 24901 26370 26640 26920 28128 30285 32304 32523 35160 35520 40380 42192 43072 43364 46880 48456 49802 52740 53280 53840 54205 56256 60570 64608 65046 70320 74703 80760 84384 86728 93760 96912 97569 99604 105480 106560 107680 108410 121140 124505 129216 130092 140640 149406 161520 162615 168768 173456 193824 195138 197189 199208 210960 215360 216820 224109 242280 249010 260184 281280 298812 323040 325230 346912 373515 387648 390276 394378 398416 421920 433640 448218 484560 487845 498020 520368 591567 597624 646080 650460 693824 747030 780552 788756 796832 843840 867280 896436 969120 975690 985945 996040 1040736 1120545 1183134 1195248 1300920 1494060 1561104 1577512 1593664 1734560 1774701 1792872 1938240 1951380 1971890 1992080 2081472 2241090 2366268 2390496 2601840 2957835 2988120 3122208 3155024 3469120 3549402 3585744 3902760 3943780 3984160 4482180 4732536 4780992 5203680 5915670 5976240 6244416 6310048 7098804 7171488 7295993 7805520 7887560 7968320 8873505 8964360 9465072 10407360 11831340 11952480 12620096 14197608 14342976 14591986 15611040 15775120 17747010 17928720 18930144 21887979 23662680 23904960 28395216 29183972 31222080 31550240 35494020 35857440 36479965 37860288 43775958 47325360 56790432 58367944 63100480 65663937 70988040 71714880 72959930 87551916 94650720 109439895 113580864 116735888 131327874 141976080 145919860 175103832 189301440 218879790 233471776 262655748 283952160 291839720 328319685 350207664 437759580 466943552 525311496 567904320 583679440 656639370 700415328 875519160 1050622992 1167358880 1313278740 1400830656 1751038320 2101245984 2334717760 2626557480 3502076640 4202491968 5253114960 7004153280 10506229920 21012459840
- Sum of all divisors σ(n): 74591466768
- Sum of proper divisors (its aliquot sum) s(n): 53579006928
- 21012459840 is an abundant number, because the sum of its proper divisors (53579006928) is greater than itself. Its abundance is 32566547088
Bases of 21012459840
- Binary: 100111001000111000010110001010000002
- Hexadecimal: 0x4E470B140
- Base-36: 9NI9XS0
Squares and roots of 21012459840
- 21012459840 squared (210124598402) is 441523468527612825600
- 21012459840 cubed (210124598403) is 9277494150853968428988923904000
-
The
square root of 21012459840 is 144956.7516192331 -
The
cube root of 21012459840 is 2759.4697153871
Scales and comparisons
How big is 21012459840?- 21,012,459,840 seconds is equal to 668 years, 6 weeks, 5 days, 18 hours, 24 minutes.
-
To count from 1 to 21,012,459,840 would take you about one thousand, three hundred thirty-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 21012459840 cubic inches would be around 230 feet tall.
Recreational maths with 21012459840
- 21012459840 backwards is 04895421012
- 21012459840 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21012459840's digits is 36
- More coming soon!
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