28020941388

Names of 28020941388

• Cardinal: 28020941388 can be written as Twenty-eight billion, twenty million, nine hundred forty-one thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 2.8020941388 × 10¹⁰

Factors of 28020941388

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 195

Divisors of 28020941388

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 121 132 162 179 198 242 243 297 324 358 363 396 484 486 537 594 716 726 891 972 1074 1089 1188 1331 1452 1611 1782 1969 2148 2178 2662 2673 3222 3267 3564 3938 3993 4356 4833 5324 5346 5907 6444 6534 7876 7986 9666 9801 10692 11814 11979 13068 14499 14641 15972 17721 19332 19602 21659 23628 23958 28998 29282 29403 35442 35937 39204 43318 43497 43923 47916 53163 57996 58564 58806 64977 70884 71874 86636 86994 87846 106326 107811 117612 129954 131769 143748 159489 161051 173988 175692 194931 212652 215622 238249 259908 263538 318978 322102 323433 389862 395307 431244 476498 478467 483153 527076 584793 637956 644204 646866 714747 779724 790614 952996 956934 966306 1169586 1185921 1293732 1429494 1449459 1581228 1754379 1913868 1932612 2144241 2339172 2371842 2620739 2858988 2898918 3508758 3557763 4288482 4348377 4743684 5241478 5263137 5797836 6432723 7017516 7115526 7862217 8576964 8696754 10482956 10526274 12865446 13045131 14231052 15724434 17393508 19298169 21052548 23586651 25730892 26090262 28828129 31448868 38596338 39135393 47173302 52180524 57656258 57894507 70759953 77192676 78270786 86484387 94346604 115312516 115789014 141519906 156541572 172968774 212279859 231578028 259453161 283039812 345937548 424559718 518906322 636839577 778359483 849119436 1037812644 1273679154 1556718966 2335078449 2547358308 3113437932 4670156898 7005235347 9340313796 14010470694 28020941388
• Sum of all divisors σ(n): 81250827840
• Sum of proper divisors (its aliquot sum) s(n): 53229886452
• 28020941388 is an abundant number, because the sum of its proper divisors (53229886452) is greater than itself. Its abundance is 25208945064

Bases of 28020941388

• Binary: 11010000110001011011010001001001100₂
• Hexadecimal: 0x6862DA24C
• Base-36: CVEY0R0

Squares and roots of 28020941388

• 28020941388 squared (28020941388²) is 785173156269731366544
• 28020941388 cubed (28020941388³) is 22001290991265107340434568123072
• The square root of 28020941388 is 167394.5679763833
• The cube root of 28020941388 is 3037.3458116519

Scales and comparisons

• 28,020,941,388 seconds is equal to 890 years, 50 weeks, 6 days, 10 hours, 49 minutes, 48 seconds.
• To count from 1 to 28,020,941,388 would take you about one thousand, seven hundred eighty-one 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 28020941388 cubic inches would be around 253.1 feet tall.

Recreational maths with 28020941388

• 28020941388 backwards is 88314902082
• The number of decimal digits it has is: 11
• The sum of 28020941388's digits is 45
• More coming soon!