142905840

Names of 142905840

• Cardinal: 142905840 can be written as One hundred forty-two million, nine hundred five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.4290584 × 10⁸

Factors of 142905840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 84

Divisors of 142905840

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 19 20 21 22 24 28 30 33 35 37 38 40 42 44 48 55 56 57 60 66 70 74 76 77 80 84 88 95 105 110 111 112 114 120 121 132 133 140 148 152 154 165 168 176 185 190 209 210 220 222 228 231 240 242 259 264 266 280 285 296 304 308 330 336 363 370 380 385 399 407 418 420 440 444 456 462 484 518 528 532 555 560 570 592 605 616 627 660 665 703 726 740 760 770 777 798 814 836 840 847 880 888 912 924 968 1036 1045 1064 1110 1140 1155 1210 1221 1232 1254 1295 1320 1330 1406 1452 1463 1480 1520 1540 1554 1596 1628 1672 1680 1694 1776 1815 1848 1936 1995 2035 2072 2090 2109 2128 2220 2280 2299 2310 2420 2442 2508 2541 2590 2640 2660 2812 2849 2904 2926 2960 3080 3108 3135 3192 3256 3344 3388 3515 3630 3696 3885 3990 4070 4144 4180 4218 4235 4389 4440 4477 4560 4598 4620 4840 4884 4921 5016 5082 5180 5320 5624 5698 5808 5852 6105 6160 6216 6270 6384 6512 6776 6897 7030 7260 7315 7733 7770 7980 8140 8360 8436 8470 8547 8778 8880 8954 9196 9240 9680 9768 9842 10032 10164 10360 10545 10640 11248 11396 11495 11704 12210 12432 12540 12705 13431 13552 13794 14060 14245 14520 14630 14763 15466 15540 15960 16093 16280 16720 16872 16940 17094 17556 17908 18392 18480 19536 19684 20328 20720 21090 21945 22385 22792 22990 23199 23408 24420 24605 25080 25410 26862 27588 28120 28490 29040 29260 29526 30932 31080 31339 31920 32186 32560 33744 33880 34188 34485 35112 35816 36784 38665 39368 40656 42180 42735 43890 44770 45584 45980 46398 48279 48840 49210 50160 50820 53724 54131 55176 56240 56980 58520 59052 61864 62160 62678 64372 67155 67760 68376 68970 70224 71632 73815 77330 78736 80465 84360 85063 85470 87780 89540 91960 92796 94017 96558 97680 98420 101640 107448 108262 110352 113960 115995 117040 118104 123728 125356 128744 134310 136752 137940 147630 154660 156695 160930 162393 168720 170126 170940 175560 179080 183920 185592 188034 193116 196840 203280 214896 216524 227920 231990 236208 241395 250712 255189 257488 268620 270655 275880 295260 309320 313390 321860 324786 340252 341880 351120 358160 371184 376068 386232 393680 425315 433048 463980 470085 482790 501424 510378 537240 541310 551760 590520 595441 618640 626780 643720 649572 680504 683760 752136 772464 811965 850630 866096 927960 940170 965580 1020756 1074480 1082620 1181040 1190882 1253560 1275945 1287440 1299144 1361008 1504272 1623930 1701260 1786323 1855920 1880340 1931160 2041512 2165240 2381764 2507120 2551890 2598288 2977205 3247860 3402520 3572646 3760680 3862320 4083024 4330480 4763528 5103780 5954410 6495720 6805040 7145292 7521360 8931615 9527056 10207560 11908820 12991440 14290584 17863230 20415120 23817640 28581168 35726460 47635280 71452920 142905840
• Sum of all divisors σ(n): 601628160
• Sum of proper divisors (its aliquot sum) s(n): 458722320
• 142905840 is an abundant number, because the sum of its proper divisors (458722320) is greater than itself. Its abundance is 315816480

Bases of 142905840

• Binary: 1000100001001001000111110000₂
• Hexadecimal: 0x88491F0
• Base-36: 2D2YUO

Squares and roots of 142905840

• 142905840 squared (142905840²) is 20422079106105600
• 142905840 cubed (142905840³) is 2918434369204469896704000
• The square root of 142905840 is 11954.3230674095
• The cube root of 142905840 is 522.8173510709

Scales and comparisons

• 142,905,840 seconds is equal to 4 years, 28 weeks, 2 days, 4 minutes.
• To count from 1 to 142,905,840 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 142905840 cubic inches would be around 43.6 feet tall.

Recreational maths with 142905840

• 142905840 backwards is 048509241
• 142905840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142905840's digits is 33
• More coming soon!