689115420

Names of 689115420

• Cardinal: 689115420 can be written as Six hundred eighty-nine million, one hundred fifteen thousand, four hundred twenty.

Scientific notation

• Scientific notation: 6.8911542 × 10⁸

Factors of 689115420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 162

Divisors of 689115420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 28 30 35 36 42 43 45 46 49 60 63 69 70 79 84 86 90 92 98 105 115 126 129 138 140 147 158 161 172 180 196 207 210 215 230 237 245 252 258 276 294 301 315 316 322 345 387 395 414 420 430 441 460 474 483 490 516 553 588 602 630 644 645 690 711 735 774 790 805 828 860 882 903 948 966 980 989 1035 1106 1127 1185 1204 1260 1290 1380 1422 1449 1470 1505 1548 1580 1610 1659 1764 1806 1817 1932 1935 1978 2070 2107 2205 2212 2254 2370 2415 2580 2709 2765 2844 2898 2940 2967 3010 3220 3318 3381 3397 3555 3612 3634 3870 3871 3956 4140 4214 4410 4508 4515 4740 4830 4945 4977 5418 5451 5530 5635 5796 5934 6020 6321 6636 6762 6794 6923 7110 7245 7268 7740 7742 8295 8428 8820 8901 9030 9085 9660 9890 9954 10143 10191 10535 10836 10902 11060 11270 11613 11868 12642 12719 13524 13545 13588 13846 14220 14490 14835 15484 16353 16590 16905 16985 17802 18060 18170 18963 19355 19780 19908 20286 20382 20769 21070 21804 22540 23226 23779 24885 25284 25438 27090 27255 27692 28980 29670 30573 31605 32706 33180 33810 33970 34615 34839 35604 36340 37926 38157 38710 40572 40764 41538 42140 44505 46452 47558 48461 49770 50715 50876 50955 54180 54510 58065 59340 61146 62307 63210 63595 65412 67620 67940 69230 69678 71337 75852 76314 77420 78131 81765 83076 89010 89033 94815 95116 96922 99540 101430 101910 103845 109020 114471 116130 118895 122292 124614 126420 127190 138460 139356 142674 145383 152628 152865 156262 163530 166453 174195 178020 178066 189630 190785 193844 202860 203820 207690 214011 228942 232260 234393 237790 242305 249228 254380 267099 285348 290766 305730 311535 312524 327060 332906 348390 356132 356685 379260 381570 390655 415380 428022 436149 445165 457884 468786 475580 484610 499359 534198 546917 572355 581532 611460 623070 665812 696780 703179 713370 726915 763140 781310 801297 832265 856044 872298 890330 937572 969220 998718 1068396 1070055 1093834 1144710 1171965 1246140 1335495 1406358 1426740 1453830 1498077 1562620 1602594 1640751 1664530 1744596 1780660 1997436 2140110 2180745 2187668 2289420 2343930 2496795 2670990 2734585 2812716 2907660 2996154 3205188 3281502 3329060 3515895 3828419 4006485 4280220 4361490 4687860 4922253 4993590 5341980 5469170 5992308 6563004 7031790 7490385 7656838 8012970 8203755 8722980 9844506 9987180 10938340 11485257 14063580 14980770 15313676 16025940 16407510 19142095 19689012 22970514 24611265 29961540 32815020 34455771 38284190 45941028 49222530 57426285 68911542 76568380 98445060 114852570 137823084 172278855 229705140 344557710 689115420
• Sum of all divisors σ(n): 2629186560
• Sum of proper divisors (its aliquot sum) s(n): 1940071140
• 689115420 is an abundant number, because the sum of its proper divisors (1940071140) is greater than itself. Its abundance is 1250955720

Bases of 689115420

• Binary: 101001000100110001000100011100₂
• Hexadecimal: 0x2913111C
• Base-36: BEA4V0

Squares and roots of 689115420

• 689115420 squared (689115420²) is 474880062081776400
• 689115420 cubed (689115420³) is 327247173431109418232088000
• The square root of 689115420 is 26251.0079806471
• The cube root of 689115420 is 883.2778152679

Scales and comparisons

• 689,115,420 seconds is equal to 21 years, 47 weeks, 2 days, 20 hours, 57 minutes.
• To count from 1 to 689,115,420 would take you about thirty-two 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 689115420 cubic inches would be around 73.6 feet tall.

Recreational maths with 689115420

• 689115420 backwards is 024511986
• 689115420 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 689115420's digits is 36
• More coming soon!