31980129790

Names of 31980129790

• Cardinal: 31980129790 can be written as Thirty-one billion, nine hundred eighty million, one hundred twenty-nine thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 3.198012979 × 10¹⁰

Factors of 31980129790

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 112

Divisors of 31980129790

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 14 31 35 49 62 67 70 98 134 155 217 245 310 335 343 434 469 490 670 686 938 1085 1519 1715 2077 2170 2345 3038 3283 3430 4154 4489 4690 6566 7595 8978 10385 10633 14539 15190 16415 20770 21266 22445 22981 29078 31423 32830 44890 45962 53165 62846 72695 101773 106330 114905 139159 145390 157115 203546 219961 229810 278318 300763 314230 439922 508865 601526 695795 712411 974113 1017730 1099805 1391590 1424822 1503815 1539727 1948226 2105341 2199610 3007630 3079454 3562055 4210682 4870565 6818791 7124110 7698635 9323653 9741130 10526705 13637582 14737387 15397270 18647306 21053410 29474774 34093955 46618265 47731537 65265571 68187910 73686935 93236530 95463074 103161709 130531142 147373870 206323418 238657685 326327855 456858997 477315370 515808545 652655710 913717994 1031617090 2284294985 3198012979 4568589970 6396025958 15990064895 31980129790
• Sum of all divisors σ(n): 70345728000
• Sum of proper divisors (its aliquot sum) s(n): 38365598210
• 31980129790 is an abundant number, because the sum of its proper divisors (38365598210) is greater than itself. Its abundance is 6385468420

Bases of 31980129790

• Binary: 11101110010001010100000110111111110₂
• Hexadecimal: 0x7722A0DFE
• Base-36: EOW562M

Squares and roots of 31980129790

• 31980129790 squared (31980129790²) is 1022728701385245444100
• 31980129790 cubed (31980129790³) is 32706996610258302093324189739000
• The square root of 31980129790 is 178829.8906503049
• The cube root of 31980129790 is 3174.1448430381

Scales and comparisons

• 31,980,129,790 seconds is equal to 1,016 years, 45 weeks, 1 day, 9 hours, 23 minutes, 10 seconds.
• To count from 1 to 31,980,129,790 would take you about two thousand and thirty-three 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 31980129790 cubic inches would be around 264.5 feet tall.

Recreational maths with 31980129790

• 31980129790 backwards is 09792108913
• 31980129790 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31980129790's digits is 49
• More coming soon!