138243128625

Names of 138243128625

• Cardinal: 138243128625 can be written as One hundred thirty-eight billion, two hundred forty-three million, one hundred twenty-eight thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 1.38243128625 × 10¹¹

Factors of 138243128625

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 115

Divisors of 138243128625

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 25 27 35 41 45 59 63 75 105 123 125 135 175 177 189 205 225 287 295 315 369 375 413 525 531 615 675 861 875 885 945 1025 1107 1125 1239 1435 1475 1575 1593 1681 1845 2065 2419 2583 2625 2655 3075 3375 3481 3717 4305 4425 4725 5043 5125 5535 6195 7175 7257 7375 7749 7875 7965 8405 9225 10325 10443 11151 11767 12095 12915 13275 15129 15375 16933 17405 18585 21525 21771 22125 23625 24367 25215 27675 30975 31329 35301 35875 36285 38745 39825 42025 45387 46125 50799 51625 52215 55755 58835 60475 64575 65313 66375 73101 75645 84665 87025 92925 93987 99179 105903 107625 108855 121835 126075 138375 142721 152397 154875 156645 176505 181425 193725 199125 210125 219303 226935 253995 261075 278775 294175 297537 302375 317709 322875 326565 365505 378225 423325 428163 435125 457191 464625 469935 495895 529515 544275 609175 630375 657909 694253 713605 761985 783225 882525 892611 907125 968625 999047 1096515 1134675 1269975 1284489 1305375 1393875 1470875 1487685 1588545 1632825 1827525 1891125 2082759 2116625 2140815 2285955 2349675 2479475 2647575 2677833 2721375 2997141 3045875 3289545 3471265 3568025 3809925 3853467 3916125 4412625 4463055 4995235 5482575 5673375 5851561 6248277 6349875 6422445 7438425 7942725 8164125 8991423 9137625 10413795 10704075 11429775 11748375 12397375 13237875 13389165 14985705 16447725 17356325 17554683 17840125 18744831 19049625 19267335 22315275 24976175 26974269 27412875 29257805 31241385 32112225 37192125 39713625 40960927 44957115 52068975 52664049 53520375 57148875 66945825 74928525 82238625 86781625 87773415 93724155 96336675 111576375 122882781 124880875 134871345 146289025 156206925 157992147 160561125 204804635 224785575 260344875 263320245 334729125 368648343 374642625 438867075 468620775 481683375 614413905 674356725 731445125 781034625 789960735 1024023175 1105945029 1123927875 1316601225 1843241715 2194335375 2343103875 3072069525 3371783625 3949803675 5120115875 5529725145 6583006125 9216208575 15360347625 19749018375 27648625725 46081042875 138243128625
• Sum of all divisors σ(n): 304569058560
• Sum of proper divisors (its aliquot sum) s(n): 166325929935
• 138243128625 is an abundant number, because the sum of its proper divisors (166325929935) is greater than itself. Its abundance is 28082801310

Bases of 138243128625

• Binary: 10000000101111111011101011110100110001₂
• Hexadecimal: 0x202FEEBD31
• Base-36: 1RIAE0Q9

Squares and roots of 138243128625

• 138243128625 squared (138243128625²) is 19111162612028294390625
• 138243128625 cubed (138243128625³) is 2641986911147918473582537869140625
• The square root of 138243128625 is 371810.6085428441
• The cube root of 138243128625 is 5170.6822628323

Scales and comparisons

• 138,243,128,625 seconds is equal to 4,395 years, 36 weeks, 4 days, 5 hours, 3 minutes, 45 seconds.
• To count from 1 to 138,243,128,625 would take you about eight thousand, seven hundred ninety-one 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 138243128625 cubic inches would be around 430.9 feet tall.

Recreational maths with 138243128625

• 138243128625 backwards is 526821342831
• 138243128625 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138243128625's digits is 45
• More coming soon!