145220040

Names of 145220040

• Cardinal: 145220040 can be written as One hundred forty-five million, two hundred twenty thousand and forty.

Scientific notation

• Scientific notation: 1.4522004 × 10⁸

Factors of 145220040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 373

Divisors of 145220040

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 19 20 21 24 27 28 30 35 36 38 40 42 45 54 56 57 60 63 70 72 76 81 84 90 95 105 108 114 120 126 133 135 140 152 162 168 171 180 189 190 210 216 228 252 266 270 280 285 315 324 337 342 360 378 380 399 405 420 456 504 513 532 540 567 570 630 648 665 674 684 756 760 798 810 840 855 945 1011 1026 1064 1080 1134 1140 1197 1260 1330 1348 1368 1512 1539 1596 1620 1685 1710 1890 1995 2022 2052 2268 2280 2359 2394 2520 2565 2660 2696 2835 3033 3078 3192 3240 3370 3420 3591 3780 3990 4044 4104 4536 4718 4788 5055 5130 5320 5670 5985 6066 6156 6403 6740 6840 7077 7182 7560 7695 7980 8088 9099 9436 9576 10110 10260 10773 11340 11795 11970 12132 12312 12806 13480 14154 14364 15165 15390 15960 17955 18198 18872 19209 20220 20520 21231 21546 22680 23590 23940 24264 25612 27297 28308 28728 30330 30780 32015 35385 35910 36396 38418 40440 42462 43092 44821 45495 47180 47880 51224 53865 54594 56616 57627 60660 61560 63693 64030 70770 71820 72792 76836 84924 86184 89642 90990 94360 96045 106155 107730 109188 115254 121320 127386 128060 134463 136485 141540 143640 153672 169848 172881 179284 181980 191079 192090 212310 215460 218376 224105 230508 254772 256120 268926 272970 283080 288135 318465 345762 358568 363960 382158 384180 403389 424620 430920 448210 461016 509544 518643 537852 545940 576270 636930 672315 691524 764316 768360 806778 849240 864405 896420 955395 1037286 1075704 1091880 1152540 1210167 1273860 1344630 1383048 1528632 1613556 1728810 1792840 1910790 2016945 2074572 2305080 2420334 2547720 2593215 2689260 3227112 3457620 3630501 3821580 4033890 4149144 4840668 5186430 5378520 6050835 6915240 7261002 7643160 8067780 9681336 10372860 12101670 14522004 16135560 18152505 20745720 24203340 29044008 36305010 48406680 72610020 145220040
• Sum of all divisors σ(n): 588931200
• Sum of proper divisors (its aliquot sum) s(n): 443711160
• 145220040 is an abundant number, because the sum of its proper divisors (443711160) is greater than itself. Its abundance is 298491120

Bases of 145220040

• Binary: 1000101001111110000111001000₂
• Hexadecimal: 0x8A7E1C8
• Base-36: 2EGKI0

Squares and roots of 145220040

• 145220040 squared (145220040²) is 21088860017601600
• 145220040 cubed (145220040³) is 3062525095310505056064000
• The square root of 145220040 is 12050.7277788521
• The cube root of 145220040 is 525.6243999431

Scales and comparisons

• 145,220,040 seconds is equal to 4 years, 32 weeks, 18 hours, 54 minutes.
• To count from 1 to 145,220,040 would take you about 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 145220040 cubic inches would be around 43.8 feet tall.

Recreational maths with 145220040

• 145220040 backwards is 040022541
• 145220040 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 145220040's digits is 18
• More coming soon!