642635399889

Names of 642635399889

• Cardinal: 642635399889 can be written as Six hundred forty-two billion, six hundred thirty-five million, three hundred ninety-nine thousand, eight hundred eighty-nine.

Scientific notation

• Scientific notation: 6.42635399889 × 10¹¹

Factors of 642635399889

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 567

Divisors of 642635399889

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 149 167 189 241 243 441 447 501 567 723 729 1043 1169 1323 1341 1503 1687 1701 2169 2187 3129 3507 3969 4023 4509 5061 5103 6507 7301 8183 9387 10521 11809 11907 12069 13527 15183 15309 19521 21903 24549 24883 28161 31563 35427 35721 35909 36207 40247 40581 45549 58563 65709 73647 74649 84483 94689 106281 107163 107727 108621 120741 121743 136647 174181 175689 197127 220941 223947 251363 253449 281729 284067 318843 323181 325863 362223 365229 409941 522543 527067 591381 662823 671841 754089 760347 845187 852201 956529 969543 1086669 1219267 1229823 1567629 1759541 1774143 1972103 1988469 2015523 2262267 2281041 2535561 2556603 2869587 2908629 3260007 3657801 3689469 4702887 5278623 5322429 5916309 5965407 5996803 6046569 6786801 7606683 8608761 8725887 9780021 10973403 14108661 15835869 15967287 17748927 17896221 17990409 18139707 20360403 22820049 25826283 26177661 29340063 32920209 41977621 42325983 47507607 53246781 53971227 54419121 61081209 68460147 78532983 88020189 98760627 125932863 126977949 142522821 159740343 161913681 183243627 205380441 293843347 296281881 377798589 380933847 427568463 479221029 485741043 549730881 616141323 881530041 888845643 1133395767 1282705389 1437663087 1457223129 2644590123 2666536929 3400187301 3848116167 4312989261 4371669387 7933770369 10200561903 13115008161 23801311107 30601685709 71403933321 91805057127 214211799963 642635399889
• Sum of all divisors σ(n): 1140156864000
• Sum of proper divisors (its aliquot sum) s(n): 497521464111
• 642635399889 is a deficient number, because the sum of its proper divisors (497521464111) is less than itself. Its deficiency is 145113935778

Bases of 642635399889

• Binary: 1001010110100000000011100000001011010001₂
• Hexadecimal: 0x95A00E02D1
• Base-36: 8780IW29

Squares and roots of 642635399889

• 642635399889 squared (642635399889²) is 412980257190494941212321
• 642635399889 cubed (642635399889³) is 265395732725875784195811452288832369
• The square root of 642635399889 is 801645.4327749893
• The cube root of 642635399889 is 8629.5513046181

Scales and comparisons

• 642,635,399,889 seconds is equal to 20,433 years, 42 weeks, 3 days, 17 hours, 18 minutes, 9 seconds.
• To count from 1 to 642,635,399,889 would take you about forty thousand, eight hundred sixty-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 642635399889 cubic inches would be around 719.1 feet tall.

Recreational maths with 642635399889

• 642635399889 backwards is 988993536246
• The number of decimal digits it has is: 12
• The sum of 642635399889's digits is 72
• More coming soon!