138955857920

Names of 138955857920

• Cardinal: 138955857920 can be written as One hundred thirty-eight billion, nine hundred fifty-five million, eight hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3895585792 × 10¹¹

Factors of 138955857920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 94

Divisors of 138955857920

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 23 32 40 44 46 53 55 64 80 88 92 106 110 115 121 128 160 176 184 212 220 230 242 253 256 265 320 352 368 424 440 460 484 506 512 529 530 583 605 640 704 736 848 880 920 968 1012 1024 1058 1060 1166 1210 1219 1265 1280 1408 1472 1696 1760 1840 1936 2024 2048 2116 2120 2332 2420 2438 2530 2560 2645 2783 2816 2915 2944 3392 3520 3680 3872 4048 4096 4232 4240 4664 4840 4876 5060 5120 5290 5566 5632 5819 5830 5888 6095 6413 6784 7040 7360 7744 8096 8192 8464 8480 9328 9680 9752 10120 10240 10580 11132 11264 11638 11660 11776 12190 12826 13409 13568 13915 14080 14720 15488 16192 16928 16960 18656 19360 19504 20240 20480 21160 22264 22528 23276 23320 23552 24380 25652 26818 27136 27830 28037 28160 29095 29440 30976 32065 32384 33856 33920 37312 38720 39008 40480 40960 42320 44528 45056 46552 46640 47104 48760 51304 53636 54272 55660 56074 56320 58190 58880 61952 64009 64130 64768 67045 67712 67840 74624 77440 78016 80960 84640 89056 90112 93104 93280 94208 97520 102608 107272 108544 111320 112148 112640 116380 117760 123904 128018 128260 129536 134090 135424 135680 140185 147499 149248 154880 156032 161920 169280 178112 186208 186560 188416 195040 205216 214544 217088 222640 224296 225280 232760 235520 247808 256036 256520 259072 268180 270848 271360 280370 294998 298496 308407 309760 312064 320045 323840 338560 356224 372416 373120 390080 410432 429088 434176 445280 448592 450560 465520 471040 495616 512072 513040 518144 536360 541696 542720 560740 589996 596992 616814 619520 624128 640090 647680 677120 712448 737495 744832 746240 780160 820864 858176 890560 897184 931040 942080 991232 1024144 1026080 1036288 1072720 1083392 1085440 1121480 1179992 1193984 1233628 1239040 1248256 1280180 1295360 1354240 1424896 1474990 1489664 1492480 1542035 1560320 1641728 1716352 1781120 1794368 1862080 2048288 2052160 2072576 2145440 2166784 2170880 2242960 2359984 2387968 2467256 2478080 2496512 2560360 2590720 2708480 2849792 2949980 2979328 2984960 3084070 3120640 3283456 3392477 3432704 3562240 3588736 3724160 4096576 4104320 4290880 4333568 4485920 4719968 4775936 4934512 4956160 4993024 5120720 5181440 5416960 5699584 5899960 5958656 5969920 6168140 6241280 6566912 6784954 6865408 7124480 7177472 7448320 8193152 8208640 8581760 8971840 9439936 9869024 9986048 10241440 10362880 10833920 11399168 11799920 11917312 11939840 12336280 12482560 13133824 13569908 13730816 14248960 14354944 14896640 16386304 16417280 16962385 17163520 17943680 18879872 19738048 20482880 21667840 22798336 23599840 23834624 23879680 24672560 24965120 26267648 27139816 27461632 28497920 28709888 29793280 32772608 32834560 33924770 34327040 35887360 37759744 39476096 40965760 47199680 47669248 49345120 49930240 52535296 54279632 54923264 56995840 57419776 59586560 65545216 65669120 67849540 68654080 71774720 75519488 78952192 81931520 94399360 98690240 108559264 109846528 113991680 114839552 119173120 131090432 131338240 135699080 137308160 143549440 151038976 157904384 163863040 188798720 197380480 217118528 229679104 238346240 262180864 262676480 271398160 274616320 287098880 302077952 315808768 327726080 377597440 394760960 434237056 524361728 542796320 549232640 574197760 604155904 631617536 655452160 755194880 789521920 868474112 1085592640 1148395520 1208311808 1263235072 1310904320 1510389760 1579043840 1736948224 2171185280 2526470144 2621808640 3020779520 3158087680 3473896448 4342370560 6041559040 6316175360 6947792896 8684741120 12632350720 13895585792 17369482240 27791171584 34738964480 69477928960 138955857920
• Sum of all divisors σ(n): 390404858508
• Sum of proper divisors (its aliquot sum) s(n): 251449000588
• 138955857920 is an abundant number, because the sum of its proper divisors (251449000588) is greater than itself. Its abundance is 112493142668

Bases of 138955857920

• Binary: 10000001011010011010100010000000000000₂
• Hexadecimal: 0x205A6A2000
• Base-36: 1RU2QA68

Squares and roots of 138955857920

• 138955857920 squared (138955857920²) is 19308730450283226726400
• 138955857920 cubed (138955857920³) is 2683061205065133676752785113088000
• The square root of 138955857920 is 372767.8338054399
• The cube root of 138955857920 is 5179.5530629131

Scales and comparisons

• 138,955,857,920 seconds is equal to 4,418 years, 19 weeks, 9 hours, 25 minutes, 20 seconds.
• To count from 1 to 138,955,857,920 would take you about eight thousand, eight hundred thirty-six 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 138955857920 cubic inches would be around 431.6 feet tall.

Recreational maths with 138955857920

• 138955857920 backwards is 029758559831
• The number of decimal digits it has is: 12
• The sum of 138955857920's digits is 62
• More coming soon!