145215180

Names of 145215180

• Cardinal: 145215180 can be written as One hundred forty-five million, two hundred fifteen thousand, one hundred eighty.

Scientific notation

• Scientific notation: 1.4521518 × 10⁸

Factors of 145215180

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 331

Divisors of 145215180

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 29 30 33 36 44 45 54 55 58 60 66 81 87 90 99 108 110 116 132 135 145 162 165 174 180 198 220 261 270 281 290 297 319 324 330 348 396 405 435 495 522 540 562 580 594 638 660 783 810 843 870 891 957 990 1044 1124 1188 1276 1305 1405 1485 1566 1595 1620 1686 1740 1782 1914 1980 2349 2529 2610 2810 2871 2970 3091 3132 3190 3372 3564 3828 3915 4215 4455 4698 4785 5058 5220 5620 5742 5940 6182 6380 7587 7830 8149 8430 8613 8910 9273 9396 9570 10116 11484 11745 12364 12645 14355 15174 15455 15660 16298 16860 17226 17820 18546 19140 22761 23490 24447 25290 25839 27819 28710 30348 30910 32596 34452 37092 37935 40745 43065 45522 46365 46980 48894 50580 51678 55638 57420 61820 73341 75870 81490 83457 86130 89639 91044 92730 97788 103356 111276 113805 122235 129195 139095 146682 151740 162980 166914 172260 179278 185460 220023 227610 244470 250371 258390 268917 278190 293364 333828 358556 366705 417285 440046 448195 455220 488940 500742 516780 537834 556380 660069 733410 806751 834570 880092 896390 1001484 1075668 1100115 1251855 1320138 1344585 1466820 1613502 1669140 1792780 2200230 2420253 2503710 2640276 2689170 3227004 3300345 4033755 4400460 4840506 5007420 5378340 6600690 7260759 8067510 9681012 12101265 13201380 14521518 16135020 24202530 29043036 36303795 48405060 72607590 145215180
• Sum of all divisors σ(n): 515924640
• Sum of proper divisors (its aliquot sum) s(n): 370709460
• 145215180 is an abundant number, because the sum of its proper divisors (370709460) is greater than itself. Its abundance is 225494280

Bases of 145215180

• Binary: 1000101001111100111011001100₂
• Hexadecimal: 0x8A7CECC
• Base-36: 2EGGR0

Squares and roots of 145215180

• 145215180 squared (145215180²) is 21087448502432400
• 145215180 cubed (145215180³) is 3062217630021451403832000
• The square root of 145215180 is 12050.5261295929
• The cube root of 145215180 is 525.6185362827

Scales and comparisons

• 145,215,180 seconds is equal to 4 years, 32 weeks, 17 hours, 33 minutes.
• To count from 1 to 145,215,180 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 145215180 cubic inches would be around 43.8 feet tall.

Recreational maths with 145215180

• 145215180 backwards is 081512541
• 145215180 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 145215180's digits is 27
• More coming soon!