138345609720

Names of 138345609720

• Cardinal: 138345609720 can be written as One hundred thirty-eight billion, three hundred forty-five million, six hundred nine thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.3834560972 × 10¹¹

Factors of 138345609720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 51265

Divisors of 138345609720

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 76 95 114 120 152 190 228 285 380 456 570 760 1140 1213 2280 2426 3639 4852 6065 7278 9704 12130 14556 18195 23047 24260 29112 36390 46094 48520 50023 69141 72780 92188 100046 115235 138282 145560 150069 184376 200092 230470 250115 276564 300138 345705 400184 460940 500230 553128 600276 691410 750345 921880 950437 1000460 1200552 1382820 1500690 1900874 2000920 2765640 2851311 3001380 3801748 4752185 5702622 6002760 7603496 9504370 11405244 14256555 19008740 22810488 28513110 38017480 57026220 60677899 114052440 121355798 182033697 242711596 303389495 364067394 485423192 606778990 728134788 910168485 1152880081 1213557980 1456269576 1820336970 2305760162 2427115960 3458640243 3640673940 4611520324 5764400405 6917280486 7281347880 9223040648 11528800810 13834560972 17293201215 23057601620 27669121944 34586402430 46115203240 69172804860 138345609720
• Sum of all divisors σ(n): 437249779200
• Sum of proper divisors (its aliquot sum) s(n): 298904169480
• 138345609720 is an abundant number, because the sum of its proper divisors (298904169480) is greater than itself. Its abundance is 160558559760

Bases of 138345609720

• Binary: 10000000110110000010100111100111111000₂
• Hexadecimal: 0x20360A79F8
• Base-36: 1RJZEJNC

Squares and roots of 138345609720

• 138345609720 squared (138345609720²) is 19139507728798558478400
• 138345609720 cubed (138345609720³) is 2647866866481288975751323450048000
• The square root of 138345609720 is 371948.3965821065
• The cube root of 138345609720 is 5171.9596410761

Scales and comparisons

• 138,345,609,720 seconds is equal to 4,398 years, 50 weeks, 8 hours, 2 minutes.
• To count from 1 to 138,345,609,720 would take you about eight thousand, seven hundred ninety-seven 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 138345609720 cubic inches would be around 431 feet tall.

Recreational maths with 138345609720

• 138345609720 backwards is 027906543831
• The number of decimal digits it has is: 12
• The sum of 138345609720's digits is 48
• More coming soon!