81014814720

Names of 81014814720

• Cardinal: 81014814720 can be written as Eighty-one billion, fourteen million, eight hundred fourteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 8.101481472 × 10¹⁰

Factors of 81014814720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 4099

Divisors of 81014814720

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 31 32 35 36 40 42 45 48 56 60 62 63 64 70 72 80 84 90 93 96 105 112 120 124 126 128 140 144 155 160 168 180 186 192 210 217 224 240 248 252 256 279 280 288 310 315 320 336 360 372 384 420 434 448 465 480 496 504 512 558 560 576 620 630 640 651 672 720 744 768 840 868 896 930 960 992 1008 1024 1085 1116 1120 1152 1240 1260 1280 1302 1344 1395 1440 1488 1536 1680 1736 1792 1860 1920 1953 1984 2016 2048 2170 2232 2240 2304 2480 2520 2560 2604 2688 2790 2880 2976 3072 3255 3360 3472 3584 3720 3840 3906 3968 4032 4051 4340 4464 4480 4608 4960 5040 5120 5208 5376 5580 5760 5952 6144 6510 6720 6944 7168 7440 7680 7812 7936 8064 8102 8680 8928 8960 9216 9765 9920 10080 10240 10416 10752 11160 11520 11904 12153 13020 13440 13888 14336 14880 15360 15624 15872 16128 16204 17360 17856 17920 18432 19530 19840 20160 20255 20832 21504 22320 23040 23808 24306 26040 26880 27776 28357 29760 30720 31248 31744 32256 32408 34720 35712 35840 36459 39060 39680 40320 40510 41664 43008 44640 46080 47616 48612 52080 53760 55552 56714 59520 60765 62496 63488 64512 64816 69440 71424 71680 72918 78120 79360 80640 81020 83328 85071 89280 92160 95232 97224 104160 107520 111104 113428 119040 121530 124992 125581 129024 129632 138880 141785 142848 145836 156240 158720 161280 162040 166656 170142 178560 182295 190464 194448 208320 215040 222208 226856 238080 243060 249984 251162 255213 259264 277760 283570 285696 291672 312480 317440 322560 324080 333312 340284 357120 364590 376743 388896 416640 425355 444416 453712 476160 486120 499968 502324 510426 518528 555520 567140 571392 583344 624960 627905 645120 648160 666624 680568 714240 729180 753486 777792 833280 850710 879067 907424 952320 972240 999936 1004648 1020852 1037056 1111040 1130229 1134280 1166688 1249920 1255810 1276065 1296320 1333248 1361136 1428480 1458360 1506972 1555584 1666560 1701420 1758134 1814848 1883715 1944480 1999872 2009296 2041704 2074112 2222080 2260458 2268560 2333376 2499840 2511620 2552130 2592640 2637201 2722272 2856960 2916720 3013944 3111168 3333120 3402840 3516268 3629696 3767430 3888960 3999744 4018592 4083408 4148224 4395335 4520916 4537120 4666752 4999680 5023240 5104260 5185280 5274402 5444544 5651145 5833440 6027888 6222336 6666240 6805680 7032536 7259392 7534860 7777920 7911603 8037184 8166816 8296448 8790670 9041832 9074240 9333504 9999360 10046480 10208520 10370560 10548804 10889088 11302290 11666880 12055776 12444672 13186005 13611360 14065072 14518784 15069720 15555840 15823206 16074368 16333632 17581340 18083664 18148480 18667008 19998720 20092960 20417040 20741120 21097608 21778176 22604580 23333760 24111552 24889344 26372010 27222720 28130144 29037568 30139440 31111680 31646412 32148736 32667264 35162680 36167328 36296960 37334016 39558015 40185920 40834080 41482240 42195216 43556352 45209160 46667520 48223104 52744020 54445440 56260288 58075136 60278880 62223360 63292824 64297472 65334528 70325360 72334656 72593920 74668032 79116030 80371840 81668160 84390432 87112704 90418320 93335040 96446208 105488040 108890880 112520576 120557760 124446720 126585648 128594944 130669056 140650720 144669312 145187840 158232060 160743680 163336320 168780864 174225408 180836640 186670080 192892416 210976080 217781760 225041152 241115520 253171296 257189888 261338112 281301440 289338624 290375680 316464120 321487360 326672640 337561728 361673280 373340160 385784832 421952160 435563520 450082304 482231040 506342592 522676224 562602880 578677248 632928240 642974720 653345280 675123456 723346560 771569664 843904320 871127040 900164608 964462080 1012685184 1125205760 1157354496 1265856480 1285949440 1306690560 1350246912 1446693120 1687808640 1800329216 1928924160 2025370368 2250411520 2314708992 2531712960 2613381120 2700493824 2893386240 3375617280 3857848320 4050740736 4500823040 5063425920 5400987648 5786772480 6751234560 8101481472 9001646080 10126851840 11573544960 13502469120 16202962944 20253703680 27004938240 40507407360 81014814720
• Sum of all divisors σ(n): 331327825920
• Sum of proper divisors (its aliquot sum) s(n): 250313011200
• 81014814720 is an abundant number, because the sum of its proper divisors (250313011200) is greater than itself. Its abundance is 169298196480

Bases of 81014814720

• Binary: 1001011011100110110111111100000000000₂
• Hexadecimal: 0x12DCDBF800
• Base-36: 117U4N40

Squares and roots of 81014814720

• 81014814720 squared (81014814720²) is 6563400204115928678400
• 81014814720 cubed (81014814720³) is 531732651469662143281310466048000
• The square root of 81014814720 is 284631.0150352557
• The cube root of 81014814720 is 4327.0124790835

Scales and comparisons

• 81,014,814,720 seconds is equal to 2,576 years, 1 week, 11 hours, 12 minutes.
• To count from 1 to 81,014,814,720 would take you about five thousand, one 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 81014814720 cubic inches would be around 360.6 feet tall.

Recreational maths with 81014814720

• 81014814720 backwards is 02741841018
• 81014814720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81014814720's digits is 36
• More coming soon!