138609551640

Names of 138609551640

• Cardinal: 138609551640 can be written as One hundred thirty-eight billion, six hundred nine million, five hundred fifty-one thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.3860955164 × 10¹¹

Factors of 138609551640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 457

Divisors of 138609551640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 19 20 21 24 28 30 35 38 40 42 49 56 57 60 70 76 84 95 98 105 114 120 133 140 147 152 168 190 196 210 228 245 266 280 285 294 343 380 392 399 420 421 456 490 532 570 588 665 686 735 760 798 840 842 931 980 1029 1064 1140 1176 1263 1330 1372 1470 1596 1684 1715 1862 1960 1995 2058 2105 2280 2526 2660 2744 2793 2940 2947 3192 3368 3430 3724 3990 4116 4210 4655 5052 5145 5320 5586 5880 5894 6315 6517 6860 7448 7980 7999 8232 8420 8841 9310 10104 10290 11172 11788 12630 13034 13720 13965 14735 15960 15998 16840 17682 18620 19551 20580 20629 22344 23576 23997 25260 26068 27930 29470 31996 32585 35364 37240 39102 39995 41160 41258 44205 47994 50520 52136 55860 55993 58940 61887 63992 65170 70728 78204 79990 82516 88410 95988 97755 103145 111720 111986 117880 119985 123774 130340 144403 156408 159980 165032 167979 176820 177241 191976 195510 206290 223972 239970 247548 260680 279965 288806 309435 319960 335958 353640 354482 391020 391951 412580 433209 447944 479940 495096 531723 559930 577612 618870 671916 708964 722015 782040 783902 825160 839895 866418 886205 959880 1063446 1119860 1155224 1175853 1237740 1240687 1343832 1417928 1444030 1567804 1679790 1732836 1772410 1959755 2126892 2166045 2239720 2351706 2475480 2481374 2658615 2743657 2888060 3135608 3359580 3367579 3465672 3544820 3722061 3919510 4253784 4332090 4703412 4962748 5317230 5487314 5776120 5879265 6203435 6719160 6735158 7089640 7444122 7839020 8230971 8664180 8684809 9406824 9925496 10102737 10634460 10974628 11758530 12406870 13470316 13718285 14888244 15678040 16461942 16837895 17328360 17369618 18610305 20205474 21268920 21949256 23517060 23573053 24813740 26054427 26940632 27436570 29776488 32923884 33675790 34739236 37220610 40410948 41154855 43424045 47034120 47146106 49627480 50513685 52108854 54873140 60793663 65847768 67351580 69478472 70719159 74441220 80821896 82309710 86848090 94292212 101027370 104217708 109746280 117865265 121587326 130272135 134703160 141438318 148882440 164619420 165011371 173696180 182380989 188584424 202054740 208435416 235730530 243174652 260544270 282876636 303968315 329238840 330022742 347392360 353595795 364761978 404109480 471461060 486349304 495034113 521088540 565753272 607936630 660045484 707191590 729523956 825056855 911904945 942922120 990068226 1042177080 1155079597 1215873260 1320090968 1414383180 1459047912 1650113710 1823809890 1980136452 2310159194 2431746520 2475170565 2828766360 3300227420 3465238791 3647619780 3960272904 4620318388 4950341130 5775397985 6600454840 6930477582 7295239560 9240636776 9900682260 11550795970 13860955164 17326193955 19801364520 23101591940 27721910328 34652387910 46203183880 69304775820 138609551640
• Sum of all divisors σ(n): 511669440000
• Sum of proper divisors (its aliquot sum) s(n): 373059888360
• 138609551640 is an abundant number, because the sum of its proper divisors (373059888360) is greater than itself. Its abundance is 234450336720

Bases of 138609551640

• Binary: 10000001000101110001011110100100011000₂
• Hexadecimal: 0x2045C5E918
• Base-36: 1ROCJQJC

Squares and roots of 138609551640

• 138609551640 squared (138609551640²) is 19212607805841826689600
• 138609551640 cubed (138609551640³) is 2663050953802899770204041450944000
• The square root of 138609551640 is 372303.0373768121
• The cube root of 138609551640 is 5175.2466499631

Scales and comparisons

• 138,609,551,640 seconds is equal to 4,407 years, 18 weeks, 3 days, 5 hours, 14 minutes.
• To count from 1 to 138,609,551,640 would take you about eight thousand, eight hundred fourteen 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 138609551640 cubic inches would be around 431.3 feet tall.

Recreational maths with 138609551640

• 138609551640 backwards is 046155906831
• The number of decimal digits it has is: 12
• The sum of 138609551640's digits is 48
• More coming soon!