38642129757

Names of 38642129757

• Cardinal: 38642129757 can be written as Thirty-eight billion, six hundred forty-two million, one hundred twenty-nine thousand, seven hundred fifty-seven.

Scientific notation

• Scientific notation: 3.8642129757 × 10¹⁰

Factors of 38642129757

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 209

Divisors of 38642129757

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 7 9 11 19 21 27 29 33 49 57 61 63 77 79 87 99 133 147 171 183 189 203 209 231 237 261 297 319 399 427 441 513 539 549 551 553 609 627 671 693 711 783 869 931 957 1159 1197 1281 1323 1421 1463 1501 1617 1647 1653 1659 1769 1827 1881 2013 2079 2133 2233 2291 2607 2793 2871 2989 3477 3591 3843 3857 3871 4263 4389 4503 4697 4819 4851 4959 4977 5307 5481 5643 6039 6061 6083 6699 6873 7821 8113 8379 8613 8967 10241 10431 10507 11529 11571 11613 12383 12749 12789 13167 13509 14091 14457 14553 14877 14931 15631 15921 16037 16511 18117 18183 18249 19459 20097 20619 23463 24339 25137 25201 26901 26999 30723 31293 31521 32879 33611 33733 34713 34839 37149 38247 38367 39501 40527 42273 42427 42581 43371 43529 46893 47763 48111 49533 53009 54549 54747 56791 58377 60291 61857 73017 73549 75603 80703 80997 86681 89243 91561 92169 94563 98637 100833 101199 104139 104517 111447 112259 114741 115577 126819 127281 127743 130113 130587 136213 139751 140679 144333 148599 159027 163647 164241 170373 175131 176407 219051 220647 226809 235277 236131 242991 260043 267729 274683 276507 283689 295911 296989 302499 303597 304703 334341 336777 344223 346731 369721 371063 381843 383229 391761 408639 419253 422037 432999 445797 477081 478819 511119 525393 529221 624701 640927 661941 680427 705831 708393 728973 780129 803187 809039 824049 887733 890967 907497 910791 914109 953491 978257 1007171 1010331 1040193 1109163 1113189 1145529 1149687 1175283 1225917 1234849 1257759 1431243 1436457 1533357 1537261 1587663 1646939 1874103 1922781 1985823 2117493 2125179 2132921 2340387 2409561 2427117 2472147 2588047 2597441 2655269 2672901 2742327 2860473 2934771 3021513 3030993 3120579 3327489 3339567 3351733 3677751 3704547 3773277 4309371 4486489 4611783 4762989 4940817 5622309 5768343 6352479 6375537 6398763 6847799 7050197 7281351 7764141 7792323 7965807 8018703 8226981 8581419 8804313 9064539 9982467 10018701 10055199 10760827 11113641 12928113 13459467 13835349 14822451 16866927 17305029 18116329 18586883 19196289 20543397 21150591 21844053 23292423 23376969 23462131 23897421 25744257 26412939 27193617 29207959 30165597 32282481 33340923 40378401 41506047 44467353 49351379 54348987 55760649 57588867 61630191 63451773 69877269 70130907 70386393 71692263 75325789 87623877 90496791 96847443 121135203 130108181 148054137 163046961 167281947 184890573 190355319 204455713 211159179 225977367 262871631 290542329 390324543 444162411 489140883 501845841 613367139 633477537 677932101 788614893 1170973629 1332487233 1431189991 1840101417 2033796303 3512920887 4293569973 5520304251 12880709919 38642129757
• Sum of all divisors σ(n): 81423360000
• Sum of proper divisors (its aliquot sum) s(n): 42781230243
• 38642129757 is an abundant number, because the sum of its proper divisors (42781230243) is greater than itself. Its abundance is 4139100486

Bases of 38642129757

• Binary: 100011111111010000000001101101011101₂
• Hexadecimal: 0x8FF401B5D
• Base-36: HR2IY59

Squares and roots of 38642129757

• 38642129757 squared (38642129757²) is 1493214192156824879049
• 38642129757 cubed (38642129757³) is 57700976568317958669337288761093
• The square root of 38642129757 is 196576.0152129451
• The cube root of 38642129757 is 3380.8067865359

Scales and comparisons

• 38,642,129,757 seconds is equal to 1,228 years, 36 weeks, 2 days, 20 hours, 55 minutes, 57 seconds.
• To count from 1 to 38,642,129,757 would take you about two thousand, four hundred fifty-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 38642129757 cubic inches would be around 281.7 feet tall.

Recreational maths with 38642129757

• 38642129757 backwards is 75792124683
• The number of decimal digits it has is: 11
• The sum of 38642129757's digits is 54
• More coming soon!