638138175136

Names of 638138175136

• Cardinal: 638138175136 can be written as Six hundred thirty-eight billion, one hundred thirty-eight million, one hundred seventy-five thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 6.38138175136 × 10¹¹

Factors of 638138175136

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 39

Divisors of 638138175136

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 7 8 11 14 16 19 22 28 32 38 44 49 56 76 77 88 98 112 121 133 152 154 176 196 209 224 242 266 304 308 343 352 361 392 418 484 532 539 608 616 686 722 784 836 847 931 968 1064 1078 1232 1331 1372 1444 1463 1568 1672 1694 1862 1936 2128 2156 2299 2464 2527 2662 2744 2888 2926 3344 3388 3724 3773 3872 3971 4256 4312 4598 5054 5324 5488 5776 5852 5929 6517 6688 6776 7448 7546 7942 8624 9196 9317 10108 10241 10648 10976 11552 11704 11858 13034 13552 14641 14896 15092 15884 16093 17248 17689 18392 18634 20216 20482 21296 23408 23716 25289 26068 27104 27797 29282 29792 30184 31768 32186 35378 36784 37268 40432 40964 41503 42592 43681 46816 47432 50578 52136 55594 58564 60368 63536 64372 65219 70756 71687 73568 74536 80864 81928 83006 87362 94864 101156 102487 104272 111188 112651 117128 120736 123823 127072 128744 130438 141512 143374 149072 161051 163856 166012 174724 177023 189728 194579 202312 204974 208544 222376 225302 234256 247646 257488 260876 278179 283024 286748 298144 305767 322102 327712 332024 349448 354046 389158 404624 409948 444752 450604 456533 468512 480491 495292 514976 521752 556358 566048 573496 611534 644204 664048 698896 708092 717409 778316 788557 809248 819896 889504 901208 913066 960982 990584 1043504 1112716 1127357 1146992 1223068 1239161 1288408 1328096 1362053 1397792 1416184 1434818 1556632 1577114 1639792 1802416 1826132 1921964 1947253 1981168 2087008 2140369 2225432 2254714 2293984 2446136 2478322 2576816 2724106 2832368 2869636 3059969 3113264 3154228 3279584 3363437 3604832 3652264 3843928 3894506 3962336 4280738 4450864 4509428 4892272 4956644 5021863 5153632 5285401 5448212 5664736 5739272 6119938 6226528 6308456 6726874 7304528 7687856 7789012 7891499 8561476 8674127 8901728 9018856 9784544 9913288 10043726 10570802 10896424 11478544 12239876 12616912 13453748 13630771 14609056 14982583 15375712 15578024 15782998 17122952 17348254 18037712 19826576 20087452 21141604 21419783 21792848 22957088 23544059 24479752 25233824 26907496 27261542 29965166 31156048 31565996 34245904 34696508 36075424 36997807 39653152 40174904 42283208 42839566 43585696 47088118 48959504 53814992 54523084 55240493 58139411 59930332 62312096 63131992 68491808 69393016 73995614 80349808 84566416 85679132 94176236 95415397 97919008 107629984 109046168 110480986 116278822 119860664 126263984 138786032 147991228 149938481 160699616 164808413 169132832 171358264 188352472 190830794 218092336 220961972 232557644 239721328 252527968 258984649 277572064 295982456 299876962 329616826 342716528 376704944 381661588 406975877 436184672 441923944 465115288 479442656 517969298 591964912 599753924 659233652 685433056 753409888 763323176 813951754 883847888 930230576 1035938596 1049569367 1183929824 1199507848 1318467304 1526646352 1627903508 1767695776 1812892543 1860461152 2071877192 2099138734 2399015696 2636934608 2848831139 3053292704 3255807016 3625785086 4143754384 4198277468 4798031392 5273869216 5697662278 6511614032 7251570172 8287508768 8396554936 11395324556 13023228064 14503140344 16793109872 19941817973 22790649112 29006280688 33586219744 39883635946 45581298224 58012561376 79767271892 91162596448 159534543784 319069087568 638138175136
• Sum of all divisors σ(n): 1700910187200
• Sum of proper divisors (its aliquot sum) s(n): 1062772012064
• 638138175136 is an abundant number, because the sum of its proper divisors (1062772012064) is greater than itself. Its abundance is 424633836928

Bases of 638138175136

• Binary: 1001010010010011111111111100111010100000₂
• Hexadecimal: 0x9493FFCEA0
• Base-36: 855MZR8G

Squares and roots of 638138175136

• 638138175136 squared (638138175136²) is 407220330565904208618496
• 638138175136 cubed (638138175136³) is 259862838625604793869589281056915456
• The square root of 638138175136 is 798835.5119397235
• The cube root of 638138175136 is 8609.3740184287

Scales and comparisons

• 638,138,175,136 seconds is equal to 20,290 years, 42 weeks, 4 days, 12 hours, 12 minutes, 16 seconds.
• To count from 1 to 638,138,175,136 would take you about forty thousand, five 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 638138175136 cubic inches would be around 717.4 feet tall.

Recreational maths with 638138175136

• 638138175136 backwards is 631571831836
• The number of decimal digits it has is: 12
• The sum of 638138175136's digits is 52
• More coming soon!