81125321472
81,125,321,472 is an even composite number composed of five prime numbers multiplied together.
81125321472 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 81125321472:
28 × 33 × 132 × 37 × 1877
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 13 × 13 × 37 × 1877)See below for interesting mathematical facts about the number 81125321472 from the Numbermatics database.
Names of 81125321472
- Cardinal: 81125321472 can be written as Eighty-one billion, one hundred twenty-five million, three hundred twenty-one thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 8.1125321472 × 1010
Factors of 81125321472
Divisors of 81125321472
- Number of divisors d(n): 432
-
Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 37 39 48 52 54 64 72 74 78 96 104 108 111 117 128 144 148 156 169 192 208 216 222 234 256 288 296 312 333 338 351 384 416 432 444 468 481 507 576 592 624 666 676 702 768 832 864 888 936 962 999 1014 1152 1184 1248 1332 1352 1404 1443 1521 1664 1728 1776 1872 1877 1924 1998 2028 2304 2368 2496 2664 2704 2808 2886 3042 3328 3456 3552 3744 3754 3848 3996 4056 4329 4563 4736 4992 5328 5408 5616 5631 5772 6084 6253 6912 7104 7488 7508 7696 7992 8112 8658 9126 9472 9984 10656 10816 11232 11262 11544 12168 12506 12987 14208 14976 15016 15392 15984 16224 16893 17316 18252 18759 21312 21632 22464 22524 23088 24336 24401 25012 25974 28416 29952 30032 30784 31968 32448 33786 34632 36504 37518 42624 43264 44928 45048 46176 48672 48802 50024 50679 51948 56277 60064 61568 63936 64896 67572 69264 69449 73008 73203 75036 85248 89856 90096 92352 97344 97604 100048 101358 103896 112554 120128 123136 127872 129792 135144 138528 138898 146016 146406 150072 168831 180192 184704 194688 195208 200096 202716 207792 208347 219609 225108 240256 255744 270288 277056 277796 292032 292812 300144 317213 337662 360384 369408 389376 390416 400192 405432 415584 416694 439218 450216 480512 540576 554112 555592 584064 585624 600288 625041 634426 658827 675324 720768 780832 800384 810864 831168 833388 878436 900432 902837 951639 1081152 1108224 1111184 1168128 1171248 1200576 1250082 1268852 1317654 1350648 1441536 1561664 1600768 1621728 1662336 1666776 1756872 1800864 1805674 1875123 1903278 2162304 2222368 2342496 2401152 2500164 2537704 2635308 2701296 2708511 2854917 3123328 3243456 3324672 3333552 3513744 3601728 3611348 3750246 3806556 4324608 4444736 4684992 4802304 5000328 5075408 5270616 5402592 5417022 5709834 6246656 6486912 6667104 7027488 7203456 7222696 7500492 7613112 8125533 8564751 8889472 9369984 10000656 10150816 10541232 10805184 10834044 11419668 11736881 12973824 13334208 14054976 14406912 14445392 15000984 15226224 16251066 17129502 17778944 18739968 20001312 20301632 21082464 21610368 21668088 22839336 23473762 24376599 26668416 28109952 28890784 30001968 30452448 32502132 34259004 35210643 40002624 40603264 42164928 43220736 43336176 45678672 46947524 48753198 53336832 56219904 57781568 60003936 60904896 65004264 68518008 70421286 80005248 81206528 84329856 86672352 91357344 93895048 97506396 105631929 115563136 120007872 121809792 130008528 137036016 140842572 160010496 168659712 173344704 182714688 187790096 195012792 211263858 231126272 240015744 243619584 260017056 274072032 281685144 316895787 346689408 365429376 375580192 390025584 422527716 480031488 520034112 548144064 563370288 633791574 693378816 730858752 751160384 780051168 845055432 1040068224 1096288128 1126740576 1267583148 1502320768 1560102336 1690110864 2080136448 2192576256 2253481152 2535166296 3004641536 3120204672 3380221728 4506962304 5070332592 6240409344 6760443456 9013924608 10140665184 13520886912 20281330368 27041773824 40562660736 81125321472
- Sum of all divisors σ(n): 266938469280
- Sum of proper divisors (its aliquot sum) s(n): 185813147808
- 81125321472 is an abundant number, because the sum of its proper divisors (185813147808) is greater than itself. Its abundance is 104687826336
Bases of 81125321472
- Binary: 10010111000110111001000101011000000002
- Hexadecimal: 0x12E3722B00
- Base-36: 119NX6O0
Squares and roots of 81125321472
- 81125321472 squared (811253214722) is 6581317783935344246784
- 81125321472 cubed (811253214723) is 533911520931145439283337702146048
-
The
square root of 81125321472 is 284825.0717054241 -
The
cube root of 81125321472 is 4328.9789788769
Scales and comparisons
How big is 81125321472?- 81,125,321,472 seconds is equal to 2,579 years, 27 weeks, 5 days, 11 hours, 31 minutes, 12 seconds.
-
To count from 1 to 81,125,321,472 would take you about five thousand, one 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 81125321472 cubic inches would be around 360.7 feet tall.
Recreational maths with 81125321472
- 81125321472 backwards is 27412352118
- 81125321472 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81125321472's digits is 36
- More coming soon!
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The information we have on file for 81125321472 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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