145880640

Names of 145880640

• Cardinal: 145880640 can be written as One hundred forty-five million, eight hundred eighty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.4588064 × 10⁸

Factors of 145880640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 47

Divisors of 145880640

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 37 40 45 48 60 64 72 74 80 90 96 111 120 144 148 160 180 185 192 222 240 288 296 320 333 360 370 444 480 555 576 592 666 720 740 888 960 1110 1184 1332 1369 1440 1480 1665 1776 2220 2368 2664 2738 2880 2960 3330 3552 4107 4440 5328 5476 5920 6660 6845 7104 8214 8880 10656 10952 11840 12321 13320 13690 16428 17760 20535 21312 21904 24642 26640 27380 32856 35520 41070 43808 49284 50653 53280 54760 61605 65712 82140 87616 98568 101306 106560 109520 123210 131424 151959 164280 197136 202612 219040 246420 253265 262848 303918 328560 394272 405224 438080 455877 492840 506530 607836 657120 759795 788544 810448 911754 985680 1013060 1215672 1314240 1519590 1620896 1823508 1971360 2026120 2279385 2431344 3039180 3241792 3647016 3942720 4052240 4558770 4862688 6078360 7294032 8104480 9117540 9725376 12156720 14588064 16208960 18235080 24313440 29176128 36470160 48626880 72940320 145880640
• Sum of all divisors σ(n): 515706360
• Sum of proper divisors (its aliquot sum) s(n): 369825720
• 145880640 is an abundant number, because the sum of its proper divisors (369825720) is greater than itself. Its abundance is 223945080

Bases of 145880640

• Binary: 1000101100011111011001000000₂
• Hexadecimal: 0x8B1F640
• Base-36: 2EUQ80

Squares and roots of 145880640

• 145880640 squared (145880640²) is 21281161126809600
• 145880640 cubed (145880640³) is 3104509405122105606144000
• The square root of 145880640 is 12078.1058117571
• The cube root of 145880640 is 526.4202090645

Scales and comparisons

• 145,880,640 seconds is equal to 4 years, 33 weeks, 1 day, 10 hours, 24 minutes.
• To count from 1 to 145,880,640 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 145880640 cubic inches would be around 43.9 feet tall.

Recreational maths with 145880640

• 145880640 backwards is 046088541
• 145880640 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 145880640's digits is 36
• More coming soon!