7129993728

Names of 7129993728

• Cardinal: 7129993728 can be written as Seven billion, one hundred twenty-nine million, nine hundred ninety-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 7.129993728 × 10⁹

Factors of 7129993728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 256

Divisors of 7129993728

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 64 66 78 88 96 104 121 128 132 143 156 169 176 192 208 227 242 256 264 286 312 338 352 363 384 416 429 454 484 507 512 528 572 624 676 681 704 726 768 832 858 908 968 1014 1056 1144 1248 1352 1362 1408 1452 1536 1573 1664 1716 1816 1859 1936 2028 2112 2288 2496 2497 2704 2724 2816 2904 2951 3146 3328 3432 3632 3718 3872 4056 4224 4576 4719 4992 4994 5408 5448 5577 5632 5808 5902 6292 6656 6864 7264 7436 7491 7744 8112 8448 8853 9152 9438 9984 9988 10816 10896 11154 11616 11804 12584 13728 14528 14872 14982 15488 16224 16896 17706 18304 18876 19968 19976 20449 21632 21792 22308 23232 23608 25168 27456 27467 29056 29744 29964 30976 32448 32461 35412 36608 37752 38363 39952 40898 43264 43584 44616 46464 47216 50336 54912 54934 58112 59488 59928 61347 61952 64896 64922 70824 73216 75504 76726 79904 81796 82401 86528 87168 89232 92928 94432 97383 100672 109824 109868 115089 116224 118976 119856 122694 129792 129844 141648 151008 153452 159808 163592 164802 174336 178464 185856 188864 194766 201344 219648 219736 230178 237952 239712 245388 259584 259688 283296 302016 306904 319616 327184 329604 348672 356928 357071 377728 389532 402688 421993 439472 460356 475904 479424 490776 519376 566592 604032 613808 639232 654368 659208 713856 714142 755456 779064 805376 843986 878944 920712 951808 958848 981552 1038752 1071213 1133184 1208064 1227616 1265979 1278464 1308736 1318416 1427712 1428284 1510912 1558128 1687972 1757888 1841424 1917696 1963104 2077504 2142426 2266368 2416128 2455232 2531958 2617472 2636832 2855424 2856568 3116256 3375944 3515776 3682848 3835392 3926208 4155008 4284852 4532736 4641923 4910464 5063916 5234944 5273664 5713136 6232512 6751888 7031552 7365696 7852416 8310016 8569704 9283846 9820928 10127832 10469888 10547328 11426272 12465024 13503776 13925769 14063104 14731392 15704832 16620032 17139408 18567692 19641856 20255664 21094656 22852544 24930048 27007552 27851538 29462784 31409664 34278816 37135384 40511328 42189312 45705088 49860096 54015104 55703076 58925568 68557632 74270768 81022656 91410176 108030208 111406152 137115264 148541536 162045312 182820352 216060416 222812304 274230528 297083072 324090624 445624608 548461056 594166144 648181248 891249216 1188332288 1782498432 2376664576 3564996864 7129993728
• Sum of all divisors σ(n): 22707702864
• Sum of proper divisors (its aliquot sum) s(n): 15577709136
• 7129993728 is an abundant number, because the sum of its proper divisors (15577709136) is greater than itself. Its abundance is 8447715408

Bases of 7129993728

• Binary: 110101000111110110001001000000000₂
• Hexadecimal: 0x1A8FB1200
• Base-36: 39X0IDC

Squares and roots of 7129993728

• 7129993728 squared (7129993728²) is 50836810561319337984
• 7129993728 cubed (7129993728³) is 362466140453731039231032164352
• The square root of 7129993728 is 84439.2901912373
• The cube root of 7129993728 is 1924.7000131173

Scales and comparisons

• 7,129,993,728 seconds is equal to 226 years, 37 weeks, 1 hour, 48 minutes, 48 seconds.
• To count from 1 to 7,129,993,728 would take you about four hundred fifty-three 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 7129993728 cubic inches would be around 160.4 feet tall.

Recreational maths with 7129993728

• 7129993728 backwards is 8273999217
• The number of decimal digits it has is: 10
• The sum of 7129993728's digits is 57
• More coming soon!