81002672664800

Names of 81002672664800

• Cardinal: 81002672664800 can be written as Eighty-one trillion, two billion, six hundred seventy-two million, six hundred sixty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 8.10026726648 × 10¹³

Factors of 81002672664800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 958

Divisors of 81002672664800

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 31 32 40 50 62 67 80 100 124 134 155 160 200 248 268 310 335 400 496 536 620 670 775 800 853 992 1072 1240 1340 1550 1675 1706 2077 2144 2480 2680 3100 3350 3412 4154 4265 4489 4960 5360 6200 6700 6824 8308 8530 8978 10385 10720 12400 13400 13648 16616 17060 17956 20770 21325 22445 24800 26443 26800 27296 33232 34120 35912 41540 42650 44890 51925 52886 53600 57151 66464 68240 71824 83080 85300 89780 103850 105772 112225 114302 132215 136480 139159 143648 166160 170600 179560 207700 211544 224450 228604 264430 278318 285755 332320 341200 359120 415400 423088 448900 457208 528860 556636 571510 661075 682400 695795 718240 727609 830800 846176 897800 914416 1057720 1113272 1143020 1322150 1391590 1428775 1455218 1661600 1771681 1795600 1828832 2115440 2226544 2286040 2644300 2783180 2857550 2910436 3478975 3543362 3591200 3638045 3829117 4230880 4453088 4572080 5288600 5566360 5715100 5820872 6957950 7086724 7276090 7658234 8858405 9144160 10577200 11132720 11430200 11641744 13915900 14173448 14552180 15316468 17716810 18190225 19145585 21154400 22265440 22555879 22860400 23283488 27831800 28346896 29104360 30632936 35433620 36380450 38291170 44292025 45111758 45720800 48749803 55663600 56693792 58208720 61265872 70867240 72760900 76582340 88584050 90223516 95727925 97499606 111327200 112779395 116417440 118702627 122531744 141734480 145521800 153164680 177168100 180447032 191455850 194999212 225558790 237405254 243749015 283468960 291043600 306329360 354336200 360894064 382911700 389998424 451117580 474810508 487498030 563896975 582087200 593513135 612658720 708672400 721788128 765823400 779996848 902235160 949621016 974996060 1127793950 1187026270 1218745075 1417344800 1511243893 1531646800 1559993696 1804470320 1899242032 1949992120 2255587900 2374052540 2437490150 2967565675 3022487786 3063293600 3266236801 3608940640 3798484064 3899984240 4511175800 4748105080 4874980300 5935131350 6044975572 6532473602 7556219465 7799968480 9022351600 9496210160 9749960600 11870262700 12089951144 13064947204 15112438930 16331184005 18044703200 18992420320 19499921200 23740525400 24179902288 26129894408 30224877860 32662368010 37781097325 38999842400 47481050800 48359804576 52259788816 60449755720 65324736020 75562194650 81655920025 94962101600 101253340831 104519577632 120899511440 130649472040 151124389300 163311840050 202506681662 241799022880 261298944080 302248778600 326623680100 405013363324 506266704155 522597888160 604497557200 653247360200 810026726648 1012533408310 1208995114400 1306494720400 1620053453296 2025066816620 2531333520775 2612989440800 3240106906592 4050133633240 5062667041550 8100267266480 10125334083100 16200534532960 20250668166200 40501336332400 81002672664800
• Sum of all divisors σ(n): 207462089763936
• Sum of proper divisors (its aliquot sum) s(n): 126459417099136
• 81002672664800 is an abundant number, because the sum of its proper divisors (126459417099136) is greater than itself. Its abundance is 45456744434336

Bases of 81002672664800

• Binary: 10010011010101111100111100001111011000011100000₂
• Hexadecimal: 0x49ABE787B0E0
• Base-36: SPO43VLCW

Squares and roots of 81002672664800

• 81002672664800 squared (81002672664800²) is 6561432978840737133159040000
• 81002672664800 cubed (81002672664800³) is 531493607797059814568824087079009792000000
• The square root of 81002672664800 is 9000148.4801529803
• The cube root of 81002672664800 is 43267.9629866623

Scales and comparisons

• 81,002,672,664,800 seconds is equal to 2,575,634 years, 22 weeks, 3 days, 14 hours, 53 minutes, 20 seconds.
• To count from 1 to 81,002,672,664,800 would take you about six million, four hundred thirty-nine thousand and eighty-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 81002672664800 cubic inches would be around 3605.7 feet tall.

Recreational maths with 81002672664800

• 81002672664800 backwards is 00846627620018
• 81002672664800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81002672664800's digits is 50
• More coming soon!