21742997472

Names of 21742997472

• Cardinal: 21742997472 can be written as Twenty-one billion, seven hundred forty-two million, nine hundred ninety-seven thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1742997472 × 10¹⁰

Factors of 21742997472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 381

Divisors of 21742997472

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 32 36 38 42 43 48 56 57 63 72 76 84 86 96 112 114 126 129 133 144 152 168 171 172 224 228 252 258 266 288 301 304 307 336 342 344 387 399 456 504 516 532 602 608 614 672 684 688 774 798 817 903 912 921 1008 1032 1064 1197 1204 1228 1368 1376 1548 1596 1634 1806 1824 1842 1849 2016 2064 2128 2149 2394 2408 2451 2456 2709 2736 2763 3096 3192 3268 3612 3684 3698 4128 4256 4298 4788 4816 4902 4912 5418 5472 5526 5547 5719 5833 6192 6384 6447 6536 7224 7353 7368 7396 8596 9576 9632 9804 9824 10836 11052 11094 11438 11666 12384 12768 12894 12943 13072 13201 14448 14706 14736 14792 16641 17157 17192 17499 19152 19341 19608 21672 22104 22188 22876 23332 25788 25886 26144 26402 28896 29412 29472 29584 33282 34314 34384 34998 35131 38304 38682 38829 39216 39603 40831 43344 44208 44376 45752 46664 51471 51576 51772 52497 52804 58824 59168 66564 68628 68768 69996 70262 77364 77658 78432 79206 81662 86688 88416 88752 91504 92407 93328 102942 103152 103544 104994 105393 105608 116487 117648 118809 122493 133128 137256 139992 140524 154728 155316 158412 163324 177504 183008 184814 186656 205884 206304 207088 209988 210786 211216 232974 235296 237618 244986 245917 250819 266256 274512 277221 279984 281048 309456 310632 316179 316824 326648 367479 369628 411768 414176 419976 421572 422432 465948 475236 489972 491834 501638 532512 549024 554442 559968 562096 567643 618912 621264 632358 633648 653296 734958 737751 739256 752457 823536 831663 839952 843144 931896 950472 979944 983668 1003276 1108884 1124192 1135286 1242528 1264716 1267296 1306592 1469916 1475502 1478512 1504914 1647072 1663326 1679904 1686288 1702929 1755733 1863792 1900944 1959888 1967336 2006552 2213253 2217768 2257371 2270572 2529432 2939832 2951004 2957024 3009828 3326652 3372576 3405858 3511466 3727584 3801888 3919776 3934672 3973501 4013104 4426506 4435536 4514742 4541144 5058864 5108787 5267199 5879664 5902008 6019656 6653304 6811716 7022932 7869344 7947002 8026208 8853012 8871072 9029484 9082288 10117728 10217574 10534398 10785217 11759328 11804016 11920503 12039312 13306608 13623432 14045864 15801597 15894004 17706024 18058968 18164576 20435148 21068796 21570434 23608032 23841006 24078624 26613216 27246864 28091728 31603194 31788008 32355651 35412048 35761509 36117936 40870296 42137592 43140868 47682012 54493728 56183456 63206388 63576016 64711302 70824096 71523018 72235872 75496519 81740592 84275184 86281736 95364024 97066953 126412776 127152032 129422604 143046036 150993038 163481184 168550368 172563472 190728048 194133906 226489557 252825552 258845208 286092072 301986076 345126944 381456096 388267812 452979114 505651104 517690416 572184144 603972152 679468671 776535624 905958228 1035380832 1144368288 1207944304 1358937342 1553071248 1811916456 2415888608 2717874684 3106142496 3623832912 5435749368 7247665824 10871498736 21742997472
• Sum of all divisors σ(n): 76402085760
• Sum of proper divisors (its aliquot sum) s(n): 54659088288
• 21742997472 is an abundant number, because the sum of its proper divisors (54659088288) is greater than itself. Its abundance is 32916090816

Bases of 21742997472

• Binary: 10100001111111110111100111111100000₂
• Hexadecimal: 0x50FFBCFE0
• Base-36: 9ZL7W80

Squares and roots of 21742997472

• 21742997472 squared (21742997472²) is 472757939067398390784
• 21742997472 cubed (21742997472³) is 10279174674010373248433380098048
• The square root of 21742997472 is 147455.0693330005
• The cube root of 21742997472 is 2791.0854865905

Scales and comparisons

• 21,742,997,472 seconds is equal to 691 years, 18 weeks, 5 days, 1 hour, 31 minutes, 12 seconds.
• To count from 1 to 21,742,997,472 would take you about one thousand, three hundred eighty-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 21742997472 cubic inches would be around 232.6 feet tall.

Recreational maths with 21742997472

• 21742997472 backwards is 27479924712
• The number of decimal digits it has is: 11
• The sum of 21742997472's digits is 54
• More coming soon!