28729769472

Names of 28729769472

• Cardinal: 28729769472 can be written as Twenty-eight billion, seven hundred twenty-nine million, seven hundred sixty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.8729769472 × 10¹⁰

Factors of 28729769472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 121

Divisors of 28729769472

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 64 72 74 79 81 96 108 111 128 144 148 158 162 192 216 222 237 243 256 288 296 316 324 333 384 432 444 474 486 512 576 592 632 648 666 711 768 864 888 948 972 999 1152 1184 1264 1296 1332 1422 1536 1728 1776 1896 1944 1998 2133 2304 2368 2528 2592 2664 2844 2923 2997 3456 3552 3792 3888 3996 4266 4608 4736 5056 5184 5328 5688 5846 5994 6241 6399 6912 7104 7584 7776 7992 8532 8769 8991 9472 10112 10368 10656 11376 11692 11988 12482 12798 13824 14208 15168 15552 15984 17064 17538 17982 18723 18944 19197 20224 20736 21312 22752 23384 23976 24964 25596 26307 28416 30336 31104 31968 34128 35076 35964 37446 38394 40448 41472 42624 45504 46768 47952 49928 51192 52614 56169 56832 60672 62208 63936 68256 70152 71928 74892 76788 78921 85248 91008 93536 95904 99856 102384 105228 112338 121344 124416 127872 136512 140304 143856 149784 153576 157842 168507 170496 182016 187072 191808 199712 204768 210456 224676 230917 236763 255744 273024 280608 287712 299568 307152 315684 337014 364032 374144 383616 399424 409536 420912 449352 461834 473526 505521 511488 546048 561216 575424 599136 614304 631368 674028 692751 710289 748288 767232 798848 819072 841824 898704 923668 947052 1011042 1092096 1122432 1150848 1198272 1228608 1262736 1348056 1385502 1420578 1496576 1516563 1534464 1597696 1638144 1683648 1797408 1847336 1894104 2022084 2078253 2244864 2301696 2396544 2457216 2525472 2696112 2771004 2841156 3033126 3195392 3276288 3367296 3594816 3694672 3788208 4044168 4156506 4489728 4603392 4793088 4914432 5050944 5392224 5542008 5682312 6066252 6234759 6734592 7189632 7389344 7576416 8088336 8313012 9586176 9828864 10101888 10784448 11084016 11364624 12132504 12469518 13469184 14379264 14778688 15152832 16176672 16626024 18704277 20203776 21568896 22168032 22729248 24265008 24939036 28758528 29557376 30305664 32353344 33252048 37408554 40407552 43137792 44336064 45458496 48530016 49878072 56112831 59114752 60611328 64706688 66504096 74817108 86275584 88672128 90916992 97060032 99756144 112225662 118229504 121222656 129413376 133008192 149634216 177344256 181833984 194120064 199512288 224451324 258826752 266016384 299268432 354688512 363667968 388240128 399024576 448902648 532032768 598536864 776480256 798049152 897805296 1064065536 1197073728 1596098304 1795610592 2394147456 3192196608 3591221184 4788294912 7182442368 9576589824 14364884736 28729769472
• Sum of all divisors σ(n): 89443009656
• Sum of proper divisors (its aliquot sum) s(n): 60713240184
• 28729769472 is an abundant number, because the sum of its proper divisors (60713240184) is greater than itself. Its abundance is 31983470712

Bases of 28729769472

• Binary: 11010110000011011010111111000000000₂
• Hexadecimal: 0x6B06D7E00
• Base-36: D74YO00

Squares and roots of 28729769472

• 28729769472 squared (28729769472²) is 825399653914263158784
• 28729769472 cubed (28729769472³) is 23713541779225363004606851842048
• The square root of 28729769472 is 169498.5825073473
• The cube root of 28729769472 is 3062.7441128239

Scales and comparisons

• 28,729,769,472 seconds is equal to 913 years, 26 weeks, 6 days, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 28,729,769,472 would take you about one thousand, eight hundred twenty-seven 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 28729769472 cubic inches would be around 255.2 feet tall.

Recreational maths with 28729769472

• 28729769472 backwards is 27496792782
• The number of decimal digits it has is: 11
• The sum of 28729769472's digits is 63
• More coming soon!