149681840

Names of 149681840

• Cardinal: 149681840 can be written as One hundred forty-nine million, six hundred eighty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.4968184 × 10⁸

Factors of 149681840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 72

Divisors of 149681840

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 47 55 56 70 77 80 88 94 110 112 121 140 154 176 188 220 235 242 280 308 329 376 385 440 470 484 517 560 605 616 658 752 770 847 880 940 968 1034 1210 1232 1316 1540 1645 1694 1880 1936 2068 2209 2420 2585 2632 3080 3290 3388 3619 3760 4136 4235 4418 4840 5170 5264 5687 6160 6580 6776 7238 8272 8470 8836 9680 10340 11045 11374 13160 13552 14476 15463 16940 17672 18095 20680 22090 22748 24299 26320 28435 28952 30926 33880 35344 36190 39809 41360 44180 45496 48598 56870 57904 61852 67760 72380 77315 79618 88360 90992 97196 113740 121495 123704 144760 154630 159236 170093 176720 194392 199045 227480 242990 247408 267289 289520 309260 318472 340186 388784 398090 454960 485980 534578 618520 636944 680372 796180 850465 971960 1069156 1237040 1336445 1360744 1592360 1700930 1871023 1943920 2138312 2672890 2721488 3184720 3401860 3742046 4276624 5345780 6803720 7484092 9355115 10691560 13607440 14968184 18710230 21383120 29936368 37420460 74840920 149681840
• Sum of all divisors σ(n): 446669328
• Sum of proper divisors (its aliquot sum) s(n): 296987488
• 149681840 is an abundant number, because the sum of its proper divisors (296987488) is greater than itself. Its abundance is 147305648

Bases of 149681840

• Binary: 1000111010111111011010110000₂
• Hexadecimal: 0x8EBF6B0
• Base-36: 2H478W

Squares and roots of 149681840

• 149681840 squared (149681840²) is 22404653225785600
• 149681840 cubed (149681840³) is 3353569719397524053504000
• The square root of 149681840 is 12234.4529914501
• The cube root of 149681840 is 530.9533570653

Scales and comparisons

• 149,681,840 seconds is equal to 4 years, 39 weeks, 3 days, 10 hours, 17 minutes, 20 seconds.
• To count from 1 to 149,681,840 would take you about seven 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 149681840 cubic inches would be around 44.2 feet tall.

Recreational maths with 149681840

• 149681840 backwards is 048186941
• The number of decimal digits it has is: 9
• The sum of 149681840's digits is 41
• More coming soon!