138647537840

Names of 138647537840

• Cardinal: 138647537840 can be written as One hundred thirty-eight billion, six hundred forty-seven million, five hundred thirty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3864753784 × 10¹¹

Factors of 138647537840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2714

Divisors of 138647537840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 53 56 68 70 80 85 106 109 112 119 136 140 170 212 218 238 265 272 280 340 371 424 436 476 530 545 560 595 680 742 763 848 872 901 952 1060 1090 1190 1360 1484 1526 1744 1802 1853 1855 1904 2120 2180 2380 2521 2968 3052 3604 3706 3710 3815 4240 4360 4505 4760 5042 5777 5936 6104 6307 7208 7412 7420 7630 8720 9010 9265 9520 10084 11554 12208 12605 12614 12971 14416 14824 14840 15260 17647 18020 18530 20168 23108 25210 25228 25942 28885 29648 29680 30520 31535 35294 36040 37060 40336 40439 42857 46216 50420 50456 51884 57770 61040 63070 64855 70588 72080 74120 80878 85714 88235 92432 98209 100840 100912 103768 115540 126140 129710 133613 141176 148240 161756 171428 176470 196418 201680 202195 207536 214285 231080 252280 259420 267226 274789 282352 299999 323512 342856 352940 392836 404390 428570 462160 491045 504560 518840 534452 549578 599998 647024 668065 685712 687463 705880 785672 808780 857140 935291 982090 1037680 1068904 1099156 1199996 1336130 1373945 1374926 1411760 1499995 1571344 1617560 1714280 1870582 1923523 1964180 2137808 2198312 2271421 2399992 2672260 2747890 2749852 2999990 3235120 3428560 3437315 3741164 3847046 3928360 4396624 4542842 4671413 4676455 4799984 5344520 5495780 5499704 5999980 6874630 7482328 7694092 7856720 9085684 9342826 9352910 9617615 10689040 10991560 10999408 11357105 11999960 13749260 14563817 14964656 15388184 15899947 18171368 18685652 18705820 19235230 21983120 22714210 23357065 23999920 27498520 29127634 30776368 31799894 32699891 36342736 37371304 37411640 38470460 45428420 46714130 54997040 58255268 63599788 65399782 72819085 74742608 74823280 76940920 79499735 90856840 93428260 101946719 116510536 127199576 130799564 145638170 153881840 158999470 163499455 181713680 186856520 203893438 233021072 247584889 254399152 261599128 291276340 317998940 326998910 373713040 407786876 495169778 509733595 523198256 582552680 635997880 653997820 815573752 990339556 1019467190 1165105360 1237924445 1271995760 1307995640 1631147504 1733094223 1980679112 2038934380 2475848890 2615991280 3466188446 3961358224 4077868760 4951697780 6932376892 8155737520 8665471115 9903395560 13864753784 17330942230 19806791120 27729507568 34661884460 69323768920 138647537840
• Sum of all divisors σ(n): 401242533120
• Sum of proper divisors (its aliquot sum) s(n): 262594995280
• 138647537840 is an abundant number, because the sum of its proper divisors (262594995280) is greater than itself. Its abundance is 123947457440

Bases of 138647537840

• Binary: 10000001001000000010011000100010110000₂
• Hexadecimal: 0x20480988B0
• Base-36: 1ROZ5WVK

Squares and roots of 138647537840

• 138647537840 squared (138647537840²) is 19223139749094231865600
• 138647537840 cubed (138647537840³) is 2665240995766150618311509794304000
• The square root of 138647537840 is 372354.0490447231
• The cube root of 138647537840 is 5175.7193687049

Scales and comparisons

• 138,647,537,840 seconds is equal to 4,408 years, 29 weeks, 1 day, 20 hours, 57 minutes, 20 seconds.
• To count from 1 to 138,647,537,840 would take you about eight thousand, eight hundred seventeen 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 138647537840 cubic inches would be around 431.3 feet tall.

Recreational maths with 138647537840

• 138647537840 backwards is 048735746831
• 138647537840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138647537840's digits is 56
• More coming soon!