138455777280

Names of 138455777280

• Cardinal: 138455777280 can be written as One hundred thirty-eight billion, four hundred fifty-five million, seven hundred seventy-seven thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3845577728 × 10¹¹

Factors of 138455777280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 2900

Divisors of 138455777280

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 101 120 128 160 192 202 240 256 303 320 384 404 480 505 512 606 640 768 808 960 1010 1024 1212 1280 1515 1536 1616 1920 2020 2048 2424 2560 2789 3030 3072 3232 3840 4040 4096 4848 5120 5578 6060 6144 6464 7680 8080 8192 8367 9696 10240 11156 12120 12288 12928 13945 15360 16160 16384 16734 19392 20480 22312 24240 24576 25856 27890 30720 32320 32768 33468 38784 40960 41835 44624 48480 49152 51712 55780 61440 64640 66936 77568 81920 83670 89248 96960 98304 103424 111560 122880 129280 133872 155136 163840 167340 178496 193920 206848 223120 245760 258560 267744 281689 310272 334680 356992 387840 413696 446240 491520 517120 535488 563378 620544 669360 713984 775680 827392 845067 892480 1034240 1070976 1126756 1241088 1338720 1408445 1427968 1551360 1654784 1690134 1784960 2068480 2141952 2253512 2482176 2677440 2816890 2855936 3102720 3309568 3380268 3569920 4136960 4225335 4283904 4507024 4964352 5354880 5633780 5711872 6205440 6760536 7139840 8273920 8450670 8567808 9014048 9928704 10709760 11267560 11423744 12410880 13521072 14279680 16547840 16901340 17135616 18028096 21419520 22535120 22847488 24821760 27042144 28559360 33802680 34271232 36056192 42839040 45070240 45694976 49643520 54084288 57118720 67605360 68542464 72112384 85678080 90140480 91389952 108168576 114237440 135210720 137084928 144224768 171356160 180280960 216337152 228474880 270421440 274169856 288449536 342712320 360561920 432674304 456949760 540842880 576899072 685424640 721123840 865348608 1081685760 1153798144 1370849280 1442247680 1730697216 2163371520 2307596288 2884495360 3461394432 4326743040 4615192576 5768990720 6922788864 8653486080 9230385152 11537981440 13845577728 17306972160 23075962880 27691155456 34613944320 46151925760 69227888640 138455777280
• Sum of all divisors σ(n): 447598807200
• Sum of proper divisors (its aliquot sum) s(n): 309143029920
• 138455777280 is an abundant number, because the sum of its proper divisors (309143029920) is greater than itself. Its abundance is 170687252640

Bases of 138455777280

• Binary: 10000000111100100110111000000000000000₂
• Hexadecimal: 0x203C9B8000
• Base-36: 1RLSZTHC

Squares and roots of 138455777280

• 138455777280 squared (138455777280²) is 19170002262208964198400
• 138455777280 cubed (138455777280³) is 2654197563673500507873164132352000
• The square root of 138455777280 is 372096.4623320141
• The cube root of 138455777280 is 5173.3321240889

Scales and comparisons

• 138,455,777,280 seconds is equal to 4,402 years, 24 weeks, 1 day, 10 hours, 8 minutes.
• To count from 1 to 138,455,777,280 would take you about eight thousand, eight hundred four 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 138455777280 cubic inches would be around 431.1 feet tall.

Recreational maths with 138455777280

• 138455777280 backwards is 082777554831
• The number of decimal digits it has is: 12
• The sum of 138455777280's digits is 57
• More coming soon!