138235937280

Names of 138235937280

• Cardinal: 138235937280 can be written as One hundred thirty-eight billion, two hundred thirty-five million, nine hundred thirty-seven thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3823593728 × 10¹¹

Factors of 138235937280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 154

Divisors of 138235937280

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 137 140 160 168 192 210 224 240 256 274 280 320 336 384 411 420 448 480 512 548 560 640 672 685 768 822 840 896 959 960 1096 1120 1280 1344 1370 1536 1644 1680 1792 1918 1920 2055 2192 2240 2560 2688 2740 2877 3288 3360 3584 3836 3840 4110 4384 4480 4795 5376 5480 5754 6576 6720 7672 7680 8220 8768 8960 9590 10752 10960 11508 13152 13440 14385 15344 16440 17536 17920 18769 19180 21920 23016 26304 26880 28770 30688 32880 35072 37538 38360 43840 46032 52608 53760 56307 57540 61376 65760 70144 75076 76720 87680 92064 93845 105216 112614 115080 122752 131383 131520 150152 153440 175360 184128 187690 210432 225228 230160 245504 262766 263040 281535 300304 306880 350720 368256 375380 394149 450456 460320 491008 525532 526080 563070 600608 613760 656915 736512 750760 788298 900912 920640 1051064 1052160 1126140 1201216 1227520 1313830 1473024 1501520 1576596 1801824 1841280 1970745 2102128 2252280 2402432 2455040 2571353 2627660 3003040 3153192 3603648 3682560 3941490 4204256 4504560 4804864 5142706 5255320 6006080 6306384 7207296 7365120 7714059 7882980 8408512 9009120 9609728 10285412 10510640 12012160 12612768 12856765 14414592 15428118 15765960 16817024 17999471 18018240 20570824 21021280 24024320 25225536 25713530 28829184 30856236 31531920 33634048 35998942 36036480 38570295 41141648 42042560 48048640 50451072 51427060 53998413 61712472 63063840 67268096 71997884 72072960 77140590 82283296 84085120 89997355 100902144 102854120 107996826 123424944 126127680 143995768 144145920 154281180 164566592 168170240 179994710 201804288 205708240 215993652 246849888 252255360 269992065 287991536 308562360 329133184 336340480 359989420 411416480 431987304 493699776 504510720 539984130 575983072 617124720 658266368 719978840 822832960 863974608 987399552 1009021440 1079968260 1151966144 1234249440 1316532736 1439957680 1645665920 1727949216 1974799104 2159936520 2303932288 2468498880 2879915360 3291331840 3455898432 3949598208 4319873040 4607864576 4936997760 5759830720 6582663680 6911796864 8639746080 9215729152 9873995520 11519661440 13823593728 17279492160 19747991040 23039322880 27647187456 34558984320 46078645760 69117968640 138235937280
• Sum of all divisors σ(n): 508768508160
• Sum of proper divisors (its aliquot sum) s(n): 370532570880
• 138235937280 is an abundant number, because the sum of its proper divisors (370532570880) is greater than itself. Its abundance is 232296633600

Bases of 138235937280

• Binary: 10000000101111100000010000001000000000₂
• Hexadecimal: 0x202F810200
• Base-36: 1RI63VUO

Squares and roots of 138235937280

• 138235937280 squared (138235937280²) is 19109174355680093798400
• 138235937280 cubed (138235937280³) is 2641574627704377858060139364352000
• The square root of 138235937280 is 371800.9377072629
• The cube root of 138235937280 is 5170.5926024269

Scales and comparisons

• 138,235,937,280 seconds is equal to 4,395 years, 24 weeks, 4 days, 23 hours, 28 minutes.
• To count from 1 to 138,235,937,280 would take you about eight thousand, seven hundred ninety 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 138235937280 cubic inches would be around 430.9 feet tall.

Recreational maths with 138235937280

• 138235937280 backwards is 082739532831
• The number of decimal digits it has is: 12
• The sum of 138235937280's digits is 51
• More coming soon!