1681359680

Names of 1681359680

• Cardinal: 1681359680 can be written as One billion, six hundred eighty-one million, three hundred fifty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.68135968 × 10⁹

Factors of 1681359680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 248

Divisors of 1681359680

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 29 32 35 40 44 52 55 56 58 64 65 70 77 80 88 91 104 110 112 116 130 140 143 145 154 160 176 181 182 203 208 220 224 232 260 280 286 290 308 319 320 352 362 364 377 385 406 416 440 448 455 464 520 560 572 580 616 638 704 715 724 728 754 770 812 832 880 905 910 928 1001 1015 1040 1120 1144 1160 1232 1267 1276 1430 1448 1456 1508 1540 1595 1624 1760 1810 1820 1856 1885 1991 2002 2030 2080 2233 2240 2288 2320 2353 2464 2534 2552 2639 2860 2896 2912 3016 3080 3190 3248 3520 3620 3640 3770 3982 4004 4060 4147 4160 4466 4576 4640 4706 4928 5005 5068 5104 5249 5278 5720 5792 5824 6032 6160 6335 6380 6496 7240 7280 7540 7964 8008 8120 8294 8932 9152 9280 9412 9955 10010 10136 10208 10498 10556 11165 11440 11584 11765 12064 12320 12670 12760 12992 13195 13937 14480 14560 15080 15928 16016 16240 16471 16588 17864 18824 19910 20020 20272 20416 20735 20996 21112 22330 22880 23530 24128 24640 25340 25520 25883 26245 26390 27874 28960 29029 29120 30160 31856 32032 32480 32942 33176 35728 36743 37648 39820 40040 40544 41470 41992 42224 44660 45760 47060 50680 51040 51766 52490 52780 55748 57739 57920 58058 60320 63712 64064 64960 65884 66352 68237 69685 71456 73486 75296 79640 80080 81088 82355 82940 83984 84448 89320 94120 101360 102080 103532 104980 105560 111496 115478 116116 120640 127424 129415 131768 132704 136474 139370 142912 145145 146972 150592 159280 160160 164710 165880 167968 168896 178640 181181 183715 188240 202720 207064 209960 211120 222992 230956 232232 258830 263536 265408 272948 278740 288695 290290 293944 318560 320320 329420 331760 335936 341185 357280 362362 367430 376480 404173 405440 414128 419920 422240 445984 461912 464464 477659 517660 527072 545896 557480 577390 580580 587888 637120 658840 663520 682370 714560 724724 734860 750607 752960 808346 828256 839840 844480 891968 905905 923824 928928 955318 1035320 1054144 1091792 1114960 1154780 1161160 1175776 1317680 1327040 1364740 1449448 1469720 1501214 1616692 1656512 1679680 1811810 1847648 1857856 1910636 2020865 2070640 2183584 2229920 2309560 2322320 2351552 2388295 2635360 2729480 2898896 2939440 3002428 3233384 3623620 3695296 3753035 3821272 4041730 4141280 4367168 4459840 4619120 4644640 4776590 5254249 5270720 5458960 5797792 5878880 6004856 6466768 7247240 7506070 7642544 8083460 8282560 9238240 9289280 9553180 10508498 10917920 11595584 11757760 12009712 12933536 14494480 15012140 15285088 16166920 18476480 19106360 21016996 21835840 24019424 25867072 26271245 28988960 30024280 30570176 32333840 38212720 42033992 48038848 52542490 57977920 60048560 64667680 76425440 84067984 105084980 120097120 129335360 152850880 168135968 210169960 240194240 336271936 420339920 840679840 1681359680
• Sum of all divisors σ(n): 5591738880
• Sum of proper divisors (its aliquot sum) s(n): 3910379200
• 1681359680 is an abundant number, because the sum of its proper divisors (3910379200) is greater than itself. Its abundance is 2229019520

Bases of 1681359680

• Binary: 1100100001101111000001101000000₂
• Hexadecimal: 0x64378340
• Base-36: RT1DFK

Squares and roots of 1681359680

• 1681359680 squared (1681359680²) is 2826970373529702400
• 1681359680 cubed (1681359680³) is 4753154002607380897759232000
• The square root of 1681359680 is 41004.3861068545
• The cube root of 1681359680 is 1189.1050116829

Scales and comparisons

• 1,681,359,680 seconds is equal to 53 years, 24 weeks, 4 hours, 21 minutes, 20 seconds.
• To count from 1 to 1,681,359,680 would take you about one hundred six 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 1681359680 cubic inches would be around 99.1 feet tall.

Recreational maths with 1681359680

• 1681359680 backwards is 0869531861
• The number of decimal digits it has is: 10
• The sum of 1681359680's digits is 47
• More coming soon!