7081994640

Names of 7081994640

• Cardinal: 7081994640 can be written as Seven billion, eighty-one million, nine hundred ninety-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 7.08199464 × 10⁹

Factors of 7081994640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 505

Divisors of 7081994640

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 19 20 21 24 28 30 31 34 35 38 40 42 48 51 56 57 60 62 68 70 76 80 84 85 93 95 102 105 112 114 119 120 124 133 136 140 152 155 168 170 186 190 204 210 217 228 238 240 248 255 266 272 280 285 304 310 323 336 340 357 372 380 399 408 420 421 434 456 465 476 496 510 527 532 560 570 589 595 620 646 651 665 680 714 744 760 798 816 840 842 868 912 930 952 969 1020 1054 1064 1085 1140 1178 1190 1240 1263 1292 1302 1330 1360 1428 1488 1520 1581 1596 1615 1680 1684 1736 1767 1785 1860 1904 1938 1995 2040 2105 2108 2128 2170 2261 2280 2356 2380 2480 2526 2584 2604 2635 2660 2856 2945 2947 3162 3192 3230 3255 3368 3472 3534 3570 3689 3720 3876 3990 4080 4123 4210 4216 4340 4522 4560 4712 4760 4845 5052 5168 5208 5270 5320 5712 5890 5894 6315 6324 6384 6460 6510 6736 6783 7068 7140 7157 7378 7440 7752 7905 7980 7999 8246 8420 8432 8680 8835 8841 9044 9424 9520 9690 10013 10104 10416 10540 10640 11067 11305 11780 11788 12369 12630 12648 12920 13020 13051 13566 14136 14280 14314 14735 14756 15504 15810 15960 15998 16492 16840 17360 17670 17682 18088 18445 19380 20026 20208 20615 21080 21471 22134 22610 23560 23576 23997 24738 25260 25296 25840 26040 26102 27132 28272 28560 28628 29470 29512 30039 31620 31920 31996 32984 33680 33915 35340 35364 35785 36176 36890 38760 39153 39995 40052 41230 42160 42942 44205 44268 45220 47120 47152 47994 49476 50065 50099 50520 52080 52204 54264 55335 55993 57256 58940 59024 60078 61845 63240 63992 65255 65968 67830 70091 70680 70728 71570 73780 77520 78306 79990 80104 82460 85884 88410 88536 90440 91357 95988 98952 100130 100198 101040 104408 107355 108528 110670 111986 114512 117880 119985 120156 123690 126480 127984 130510 135660 135983 140182 141360 141456 143140 147560 150195 150297 156612 159980 160208 164920 167979 171768 176820 177072 180880 182714 191976 195765 197904 200260 200396 208816 210273 214710 221340 221867 223972 235760 239970 240312 247380 247969 250495 261020 271320 271966 274071 279965 280364 286280 295120 300390 300594 313224 319960 329840 335958 343536 350455 353640 365428 383952 391530 400520 400792 407949 420546 429420 442680 443734 447944 456785 479940 480624 494760 495938 500990 522040 542640 543932 548142 559930 560728 572560 600780 601188 626448 639920 665601 671916 679915 700910 707280 730856 743907 751485 783060 801040 801584 815898 839895 841092 858840 885360 887468 895888 913570 951881 959880 989520 991876 1001980 1044080 1051365 1087864 1096284 1109335 1119860 1121456 1201560 1202376 1239845 1331202 1343832 1359830 1370355 1401820 1461712 1487814 1502970 1553069 1566120 1631796 1679790 1682184 1717680 1735783 1774936 1827140 1903762 1919760 1983752 2003960 2039745 2102730 2175728 2192568 2218670 2239720 2403120 2404752 2479690 2662404 2687664 2719660 2740710 2803640 2855643 2975628 3005940 3106138 3132240 3263592 3328005 3359580 3364368 3471566 3549872 3654280 3719535 3807524 3967504 4007920 4079490 4205460 4215473 4385136 4437340 4479440 4659207 4759405 4959380 5207349 5324808 5439320 5481420 5607280 5711286 5951256 6011880 6212276 6527184 6656010 6719160 6943132 7308560 7439070 7615048 7765345 8158980 8410920 8430946 8678915 8874680 9318414 9518810 9918760 10414698 10649616 10878640 10962840 11422572 11902512 12023760 12424552 12646419 13312020 13438320 13886264 14278215 14878140 15230096 15530690 16317960 16821840 16861892 17357830 17749360 18636828 19037620 19837520 20829396 21077365 21925680 22845144 23296035 24849104 25292838 26036745 26624040 27772528 28556430 29508311 29756280 31061380 32635920 33723784 34715660 37273656 38075240 41658792 42154730 45690288 46592070 50585676 52073490 53248080 57112860 59016622 59512560 62122760 63232095 67447568 69431320 74547312 76150480 83317584 84309460 88524933 93184140 101171352 104146980 114225720 118033244 124245520 126464190 138862640 147541555 168618920 177049866 186368280 202342704 208293960 228451440 236066488 252928380 295083110 337237840 354099732 372736560 416587920 442624665 472132976 505856760 590166220 708199464 885249330 1011713520 1180332440 1416398928 1770498660 2360664880 3540997320 7081994640
• Sum of all divisors σ(n): 28935290880
• Sum of proper divisors (its aliquot sum) s(n): 21853296240
• 7081994640 is an abundant number, because the sum of its proper divisors (21853296240) is greater than itself. Its abundance is 14771301600

Bases of 7081994640

• Binary: 110100110000111101010100110010000₂
• Hexadecimal: 0x1A61EA990
• Base-36: 394FQ1C

Squares and roots of 7081994640

• 7081994640 squared (7081994640²) is 50154648080988729600
• 7081994640 cubed (7081994640³) is 355194948880648468927609344000
• The square root of 7081994640 is 84154.5877537285
• The cube root of 7081994640 is 1920.3712606719

Scales and comparisons

• 7,081,994,640 seconds is equal to 225 years, 9 weeks, 4 days, 12 hours, 44 minutes.
• To count from 1 to 7,081,994,640 would take you about four hundred fifty 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 7081994640 cubic inches would be around 160 feet tall.

Recreational maths with 7081994640

• 7081994640 backwards is 0464991807
• 7081994640 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7081994640's digits is 48
• More coming soon!