28389642372

Names of 28389642372

• Cardinal: 28389642372 can be written as Twenty-eight billion, three hundred eighty-nine million, six hundred forty-two thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 2.8389642372 × 10¹⁰

Factors of 28389642372

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1397

Divisors of 28389642372

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 78 81 83 84 91 108 117 126 156 162 166 182 189 234 243 249 252 273 324 332 351 364 378 468 486 498 546 567 581 702 729 747 756 819 972 996 1053 1079 1092 1134 1162 1289 1404 1458 1494 1638 1701 1743 2106 2158 2241 2268 2324 2457 2578 2916 2988 3159 3237 3276 3402 3486 3867 4212 4316 4482 4914 5103 5156 5229 6318 6474 6723 6804 6972 7371 7553 7734 8964 9023 9477 9711 9828 10206 10458 11601 12636 12948 13446 14742 15106 15468 15687 16757 18046 18954 19422 20169 20412 20916 22113 22659 23202 26892 27069 29133 29484 30212 31374 33514 34803 36092 37908 38844 40338 44226 45318 46404 47061 50271 54138 58266 60507 62748 66339 67028 67977 69606 80676 81207 87399 88452 90636 94122 100542 104409 106987 108276 116532 117299 121014 132678 135954 139212 141183 150813 162414 174798 188244 201084 203931 208818 213974 234598 242028 243621 262197 265356 271908 282366 301626 313227 320961 324828 349596 351897 407862 417636 423549 427948 452439 469196 487242 524394 564732 603252 611793 626454 641922 703794 730863 748909 786591 815724 847098 904878 939681 962883 974484 1048788 1055691 1223586 1252908 1283844 1357317 1390831 1407588 1461726 1497818 1573182 1694196 1809756 1835379 1879362 1925766 2111382 2192589 2246727 2447172 2714634 2781662 2888649 2923452 2995636 3146364 3167073 3670758 3758724 3851532 4071951 4172493 4222764 4385178 4493454 5429268 5506137 5563324 5777298 6334146 6577767 6740181 7341516 8143902 8344986 8665947 8770356 8986908 9501219 9735817 11012274 11554596 12215853 12517479 12668292 13155534 13480362 16287804 16689972 17331894 19002438 19471634 20220543 22024548 24431706 25034958 25997841 26311068 26960724 28503657 29207451 34663788 37552437 38004876 38943268 40441086 48863412 50069916 51995682 57007314 58414902 60661629 75104874 77993523 80882172 85510971 87622353 103991364 112657311 114014628 116829804 121323258 150209748 155987046 171021942 175244706 181984887 225314622 242646516 262867059 311974092 337971933 342043884 350489412 363969774 450629244 525734118 545954661 675943866 727939548 788601177 1013915799 1051468236 1091909322 1351887732 1577202354 2027831598 2183818644 2365803531 3154404708 4055663196 4731607062 7097410593 9463214124 14194821186 28389642372
• Sum of all divisors σ(n): 92854984320
• Sum of proper divisors (its aliquot sum) s(n): 64465341948
• 28389642372 is an abundant number, because the sum of its proper divisors (64465341948) is greater than itself. Its abundance is 36075699576

Bases of 28389642372

• Binary: 11010011100001001111001000010000100₂
• Hexadecimal: 0x69C279084
• Base-36: D1IGK90

Squares and roots of 28389642372

• 28389642372 squared (28389642372²) is 805971794010057786384
• 28389642372 cubed (28389642372³) is 22881250993864792326495731062848
• The square root of 28389642372 is 168492.2620537809
• The cube root of 28389642372 is 3050.6096558595

Scales and comparisons

• 28,389,642,372 seconds is equal to 902 years, 36 weeks, 3 days, 19 hours, 46 minutes, 12 seconds.
• To count from 1 to 28,389,642,372 would take you about one thousand, eight hundred five 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 28389642372 cubic inches would be around 254.2 feet tall.

Recreational maths with 28389642372

• 28389642372 backwards is 27324698382
• 28389642372 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28389642372's digits is 54
• More coming soon!