155388383451

Names of 155388383451

• Cardinal: 155388383451 can be written as One hundred fifty-five billion, three hundred eighty-eight million, three hundred eighty-three thousand, four hundred fifty-one.

Scientific notation

• Scientific notation: 1.55388383451 × 10¹¹

Factors of 155388383451

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 391

Divisors of 155388383451

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 21 27 29 49 63 71 87 147 189 203 213 261 281 343 441 497 609 639 783 841 843 1029 1323 1421 1491 1827 1917 1967 2059 2523 2529 3087 3479 4263 4473 5481 5887 5901 6177 7569 7587 8149 9261 9947 10437 12789 13419 13769 14413 17661 17703 18531 19951 22707 24353 24447 29841 31311 38367 41209 41307 43239 52983 53109 55593 57043 59711 59853 73059 73341 89523 93933 96383 100891 123627 123921 129717 139657 158949 171129 179133 179559 219177 220023 236321 268569 288463 289149 302673 370881 371763 389151 399301 417977 418971 513387 537399 538677 578579 657531 706237 708963 865389 867447 908019 977599 1112643 1197903 1253931 1256913 1540161 1612197 1654247 1735737 2118711 2126889 2596167 2602341 2724057 2795107 2925839 2932797 3593709 3761793 3770739 4050053 4962741 5207211 6356133 6380667 6843193 7788501 8385321 8777517 8798391 10781127 11285379 11579729 12150159 14888223 15621633 16778791 19068399 20480873 20529579 25155963 26332551 26395173 28350371 34739187 36450477 44664669 50336373 61442619 61588737 75467889 78997653 81058103 85051113 104217561 109351431 117451537 151009119 184327857 184766211 198452597 243174309 255153339 312652683 352354611 453027357 552983571 595357791 729522927 765460017 822160759 1057063833 1786073373 2188568781 2466482277 3171191499 5358220119 5755125313 7399446831 17265375939 22198340493 51796127817 155388383451
• Sum of all divisors σ(n): 282956544000
• Sum of proper divisors (its aliquot sum) s(n): 127568160549
• 155388383451 is a deficient number, because the sum of its proper divisors (127568160549) is less than itself. Its deficiency is 27820222902

Bases of 155388383451

• Binary: 10010000101101110111101001000011011011₂
• Hexadecimal: 0x242DDE90DB
• Base-36: 1ZDU8C0R

Squares and roots of 155388383451

• 155388383451 squared (155388383451²) is 24145549711515010669401
• 155388383451 cubed (155388383451³) is 3751937937208076908039238780482851
• The square root of 155388383451 is 394193.3325806007
• The cube root of 155388383451 is 5376.1682228855

Scales and comparisons

• 155,388,383,451 seconds is equal to 4,940 years, 45 weeks, 1 day, 15 hours, 50 minutes, 51 seconds.
• To count from 1 to 155,388,383,451 would take you about nine thousand, eight hundred eighty-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 155388383451 cubic inches would be around 448 feet tall.

Recreational maths with 155388383451

• 155388383451 backwards is 154383883551
• The number of decimal digits it has is: 12
• The sum of 155388383451's digits is 54
• More coming soon!