138643380720

Names of 138643380720

• Cardinal: 138643380720 can be written as One hundred thirty-eight billion, six hundred forty-three million, three hundred eighty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.3864338072 × 10¹¹

Factors of 138643380720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4796

Divisors of 138643380720

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 31 36 39 40 45 48 52 60 62 65 72 78 80 90 93 103 104 117 120 124 130 144 155 156 180 186 195 206 208 234 240 248 260 279 309 310 312 360 372 390 403 412 465 468 496 515 520 558 585 618 620 624 720 744 780 806 824 927 930 936 1030 1040 1116 1170 1209 1236 1240 1339 1395 1488 1545 1560 1612 1648 1854 1860 1872 2015 2060 2232 2340 2418 2472 2480 2678 2790 3090 3120 3193 3224 3627 3708 3720 4017 4030 4120 4464 4635 4639 4680 4836 4944 5356 5580 6045 6180 6386 6448 6695 7254 7416 7440 8034 8060 8240 9270 9278 9360 9579 9672 10712 11160 12051 12090 12360 12772 13390 13917 14508 14832 15965 16068 16120 18135 18540 18556 19158 19344 20085 21424 22320 23195 24102 24180 24720 25544 26780 27834 28737 29016 31930 32136 32240 36270 37080 37112 38316 40170 41509 41751 46390 47895 48204 48360 51088 53560 55668 57474 58032 60255 60307 63860 64272 69585 72540 74160 74224 76632 80340 83018 83502 92780 95790 96408 96720 107120 111336 114948 120510 120614 124527 127720 139170 143685 143809 145080 153264 160680 166036 167004 180921 185560 191580 192816 207545 208755 222672 229896 241020 241228 249054 255440 278340 287370 287618 290160 301535 321360 332072 334008 361842 371120 373581 383160 415090 417510 431427 459792 477817 482040 482456 498108 542763 556680 574740 575236 603070 622635 664144 668016 719045 723684 747162 766320 830180 835020 862854 904605 955634 964080 964912 996216 1085526 1113360 1149480 1150472 1206140 1245270 1294281 1433451 1438090 1447368 1494324 1660360 1670040 1725708 1809210 1867905 1869517 1911268 1992432 2157135 2171052 2298960 2300944 2389085 2412280 2490540 2588562 2713815 2866902 2876180 2894736 2988648 3320720 3340080 3451416 3618420 3735810 3739034 3822536 4300353 4314270 4342104 4778170 4824560 4981080 5177124 5427630 5608551 5733804 5752360 5977296 6211621 6471405 6902832 7167255 7236840 7471620 7478068 7645072 8600706 8628540 8684208 9347585 9556340 9962160 10354248 10855260 11217102 11467608 11504720 12423242 12942810 14334510 14473680 14812327 14943240 14956136 16825653 17201412 17257080 18634863 18695170 19112680 20708496 21501765 21710520 22434204 22935216 24846484 25885620 28042755 28669020 29624654 29886480 29912272 31058105 33651306 34402824 34514160 37269726 37390340 38225360 43003530 43421040 44436981 44868408 49692968 51771240 55904589 56085510 57338040 59249308 62116210 67302612 68805648 74061635 74539452 74780680 84128265 86007060 88873962 89736816 93174315 99385936 103542480 111809178 112171020 114676080 118498616 124232420 133310943 134605224 148123270 149078904 149561360 168256530 172014120 177747924 186348630 192560251 222184905 223618356 224342040 236997232 248464840 266621886 269210448 279522945 296246540 298157808 336513060 344028240 355495848 372697260 385120502 444369810 447236712 448684080 496929680 533243772 559045890 577680753 592493080 666554715 673026120 710991696 745394520 770241004 888739620 894473424 962801255 1066487544 1118091780 1155361506 1184986160 1333109430 1346052240 1490789040 1540482008 1733042259 1777479240 1925602510 2132975088 2236183560 2310723012 2666218860 2888403765 3080964016 3466084518 3554958480 3851205020 4472367120 4621446024 5332437720 5776807530 6932169036 7702410040 8665211295 9242892048 10664875440 11553615060 13864338072 15404820080 17330422590 23107230120 27728676144 34660845180 46214460240 69321690360 138643380720
• Sum of all divisors σ(n): 522739875840
• Sum of proper divisors (its aliquot sum) s(n): 384096495120
• 138643380720 is an abundant number, because the sum of its proper divisors (384096495120) is greater than itself. Its abundance is 245453114400

Bases of 138643380720

• Binary: 10000001000111110010100001100111110000₂
• Hexadecimal: 0x2047CA19F0
• Base-36: 1ROWOT80

Squares and roots of 138643380720

• 138643380720 squared (138643380720²) is 19221987017470867718400
• 138643380720 cubed (138643380720³) is 2665001264258110804590888949248000
• The square root of 138643380720 is 372348.4667888401
• The cube root of 138643380720 is 5175.6676396903

Scales and comparisons

• 138,643,380,720 seconds is equal to 4,408 years, 22 weeks, 2 days, 18 hours, 12 minutes.
• To count from 1 to 138,643,380,720 would take you about eight thousand, eight hundred sixteen 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 138643380720 cubic inches would be around 431.3 feet tall.

Recreational maths with 138643380720

• 138643380720 backwards is 027083346831
• 138643380720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138643380720's digits is 45
• More coming soon!