149309820

Names of 149309820

• Cardinal: 149309820 can be written as One hundred forty-nine million, three hundred nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.4930982 × 10⁸

Factors of 149309820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1127

Divisors of 149309820

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 73 90 99 110 132 146 165 180 198 219 220 292 330 365 396 438 495 657 660 730 803 876 990 1033 1095 1314 1460 1606 1980 2066 2190 2409 2628 3099 3212 3285 4015 4132 4380 4818 5165 6198 6570 7227 8030 9297 9636 10330 11363 12045 12396 13140 14454 15495 16060 18594 20660 22726 24090 28908 30990 34089 36135 37188 45452 46485 48180 56815 61980 68178 72270 75409 92970 102267 113630 136356 144540 150818 170445 185940 204534 226227 227260 301636 340890 377045 409068 452454 511335 678681 681780 754090 829499 904908 1022670 1131135 1357362 1508180 1658998 2045340 2262270 2488497 2714724 3317996 3393405 4147495 4524540 4976994 6786810 7465491 8294990 9953988 12442485 13573620 14930982 16589980 24884970 29861964 37327455 49769940 74654910 149309820
• Sum of all divisors σ(n): 501332832
• Sum of proper divisors (its aliquot sum) s(n): 352023012
• 149309820 is an abundant number, because the sum of its proper divisors (352023012) is greater than itself. Its abundance is 202713192

Bases of 149309820

• Binary: 1000111001100100100101111100₂
• Hexadecimal: 0x8E6497C
• Base-36: 2GW870

Squares and roots of 149309820

• 149309820 squared (149309820²) is 22293422348432400
• 149309820 cubed (149309820³) is 3328626878028418926168000
• The square root of 149309820 is 12219.2397472183
• The cube root of 149309820 is 530.5131140857

Scales and comparisons

• 149,309,820 seconds is equal to 4 years, 38 weeks, 6 days, 2 hours, 57 minutes.
• To count from 1 to 149,309,820 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 149309820 cubic inches would be around 44.2 feet tall.

Recreational maths with 149309820

• 149309820 backwards is 028903941
• 149309820 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 149309820's digits is 36
• More coming soon!