81449224704

Names of 81449224704

• Cardinal: 81449224704 can be written as Eighty-one billion, four hundred forty-nine million, two hundred twenty-four thousand, seven hundred four.

Scientific notation

• Scientific notation: 8.1449224704 × 10¹⁰

Factors of 81449224704

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 8667

Divisors of 81449224704

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 233 256 288 324 384 432 466 512 576 648 699 768 864 932 1152 1296 1398 1536 1728 1864 2097 2304 2592 2796 3456 3728 4194 4608 5184 5592 6291 6912 7456 8388 8429 10368 11184 12582 13824 14912 16776 16858 18873 20736 22368 25164 25287 29824 33552 33716 37746 41472 44736 50328 50574 59648 67104 67432 75492 75861 89472 100656 101148 119296 134208 134864 150984 151722 178944 201312 202296 227583 268416 269728 301968 303444 357888 402624 404592 455166 536832 539456 603936 606888 682749 805248 809184 910332 1073664 1078912 1207872 1213776 1365498 1610496 1618368 1820664 1963957 2157824 2415744 2427552 2730996 3220992 3236736 3641328 3927914 4315648 4831488 4855104 5461992 5891871 6473472 7282656 7855828 9662976 9710208 10923984 11783742 12946944 14565312 15711656 17675613 19420416 21847968 23567484 29130624 31423312 35351226 38840832 43695936 47134968 53026839 58261248 62846624 70702452 87391872 94269936 106053678 116522496 125693248 141404904 159080517 174783744 188539872 212107356 251386496 282809808 318161034 349567488 377079744 424214712 502772992 565619616 636322068 754159488 848429424 1005545984 1131239232 1272644136 1508318976 1696858848 2262478464 2545288272 3016637952 3393717696 4524956928 5090576544 6787435392 9049913856 10181153088 13574870784 20362306176 27149741568 40724612352 81449224704
• Sum of all divisors σ(n): 244176821460
• Sum of proper divisors (its aliquot sum) s(n): 162727596756
• 81449224704 is an abundant number, because the sum of its proper divisors (162727596756) is greater than itself. Its abundance is 81278372052

Bases of 81449224704

• Binary: 1001011110110110000001000101000000000₂
• Hexadecimal: 0x12F6C08A00
• Base-36: 11F0RK00

Squares and roots of 81449224704

• 81449224704 squared (81449224704²) is 6633976204882683887616
• 81449224704 cubed (81449224704³) is 540332218592478861921035866865664
• The square root of 81449224704 is 285393.1055649383
• The cube root of 81449224704 is 4334.7326624807

Scales and comparisons

• 81,449,224,704 seconds is equal to 2,589 years, 43 weeks, 2 days, 8 hours, 38 minutes, 24 seconds.
• To count from 1 to 81,449,224,704 would take you about five thousand, one hundred seventy-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 81449224704 cubic inches would be around 361.2 feet tall.

Recreational maths with 81449224704

• 81449224704 backwards is 40742294418
• The number of decimal digits it has is: 11
• The sum of 81449224704's digits is 45
• More coming soon!