21270157440
21,270,157,440 is an even composite number composed of six prime numbers multiplied together.
21270157440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21270157440:
27 × 3 × 5 × 7 × 37 × 42773
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 37 × 42773)See below for interesting mathematical facts about the number 21270157440 from the Numbermatics database.
Names of 21270157440
- Cardinal: 21270157440 can be written as Twenty-one billion, two hundred seventy million, one hundred fifty-seven thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.127015744 × 1010
Factors of 21270157440
Divisors of 21270157440
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 37 40 42 48 56 60 64 70 74 80 84 96 105 111 112 120 128 140 148 160 168 185 192 210 222 224 240 259 280 296 320 336 370 384 420 444 448 480 518 555 560 592 640 672 740 777 840 888 896 960 1036 1110 1120 1184 1295 1344 1480 1554 1680 1776 1920 2072 2220 2240 2368 2590 2688 2960 3108 3360 3552 3885 4144 4440 4480 4736 5180 5920 6216 6720 7104 7770 8288 8880 10360 11840 12432 13440 14208 15540 16576 17760 20720 23680 24864 31080 33152 35520 41440 42773 49728 62160 71040 82880 85546 99456 124320 128319 165760 171092 213865 248640 256638 299411 342184 427730 497280 513276 598822 641595 684368 855460 898233 1026552 1197644 1283190 1368736 1497055 1582601 1710920 1796466 2053104 2395288 2566380 2737472 2994110 3165202 3421840 3592932 4106208 4491165 4747803 4790576 5132760 5474944 5988220 6330404 6843680 7185864 7913005 8212416 8982330 9495606 9581152 10265520 11078207 11976440 12660808 13687360 14371728 15826010 16424832 17964660 18991212 19162304 20531040 22156414 23739015 23952880 25321616 27374720 28743456 31652020 33234621 35929320 37982424 38324608 41062080 44312828 47478030 47905760 50643232 55391035 57486912 63304040 66469242 71858640 75964848 82124160 88625656 94956060 95811520 101286464 110782070 114973824 126608080 132938484 143717280 151929696 166173105 177251312 189912120 191623040 202572928 221564140 253216160 265876968 287434560 303859392 332346210 354502624 379824240 443128280 506432320 531753936 574869120 607718784 664692420 709005248 759648480 886256560 1012864640 1063507872 1329384840 1418010496 1519296960 1772513120 2127015744 2658769680 3038593920 3545026240 4254031488 5317539360 7090052480 10635078720 21270157440
- Sum of all divisors σ(n): 79580171520
- Sum of proper divisors (its aliquot sum) s(n): 58310014080
- 21270157440 is an abundant number, because the sum of its proper divisors (58310014080) is greater than itself. Its abundance is 37039856640
Bases of 21270157440
- Binary: 100111100111100110011011000100000002
- Hexadecimal: 0x4F3CCD880
- Base-36: 9RRPAIO
Squares and roots of 21270157440
- 21270157440 squared (212701574402) is 452419597522387353600
- 21270157440 cubed (212701574403) is 9623036068242612935736950784000
-
The
square root of 21270157440 is 145842.9204315383 -
The
cube root of 21270157440 is 2770.7046580989
Scales and comparisons
How big is 21270157440?- 21,270,157,440 seconds is equal to 676 years, 16 weeks, 6 days, 9 hours, 4 minutes.
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To count from 1 to 21,270,157,440 would take you about one thousand, three hundred fifty-two 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 21270157440 cubic inches would be around 230.9 feet tall.
Recreational maths with 21270157440
- 21270157440 backwards is 04475107212
- The number of decimal digits it has is: 11
- The sum of 21270157440's digits is 33
- More coming soon!
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