31390875000

Names of 31390875000

• Cardinal: 31390875000 can be written as Thirty-one billion, three hundred ninety million, eight hundred seventy-five thousand.

Scientific notation

• Scientific notation: 3.1390875 × 10¹⁰

Factors of 31390875000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 212

Divisors of 31390875000

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 71 72 75 90 100 108 120 125 131 135 142 150 180 200 213 216 225 250 262 270 284 300 355 360 375 393 426 450 500 524 540 568 600 625 639 655 675 710 750 786 852 900 1000 1048 1065 1080 1125 1179 1250 1278 1310 1350 1420 1500 1572 1704 1775 1800 1875 1917 1965 2130 2250 2358 2500 2556 2620 2700 2840 3000 3125 3144 3195 3275 3375 3537 3550 3750 3834 3930 4260 4500 4716 5000 5112 5240 5325 5400 5625 5895 6250 6390 6550 6750 7074 7100 7500 7668 7860 8520 8875 9000 9301 9375 9432 9585 9825 10650 11250 11790 12500 12780 13100 13500 14148 14200 15000 15336 15625 15720 15975 16375 16875 17685 17750 18602 18750 19170 19650 21300 22500 23580 25000 25560 26200 26625 27000 27903 28125 28296 29475 31250 31950 32750 33750 35370 35500 37204 37500 38340 39300 42600 44375 45000 46505 46875 47160 47925 49125 53250 55806 56250 58950 62500 63900 65500 67500 70740 71000 74408 75000 76680 78600 79875 81875 83709 84375 88425 88750 93010 93750 95850 98250 106500 111612 112500 117900 125000 127800 131000 133125 135000 139515 140625 141480 147375 159750 163750 167418 168750 176850 177500 186020 187500 191700 196500 213000 221875 223224 225000 232525 235800 239625 245625 251127 266250 279030 281250 294750 319500 327500 334836 337500 353700 355000 372040 375000 383400 393000 399375 409375 418545 421875 442125 443750 465050 479250 491250 502254 532500 558060 562500 589500 639000 655000 665625 669672 675000 697575 707400 736875 798750 818750 837090 843750 884250 887500 930100 958500 982500 1004508 1065000 1109375 1116120 1125000 1162625 1179000 1198125 1228125 1255635 1331250 1395150 1473750 1597500 1637500 1674180 1687500 1768500 1775000 1860200 1917000 1965000 1996875 2009016 2046875 2092725 2210625 2218750 2325250 2396250 2456250 2511270 2662500 2790300 2947500 3195000 3275000 3328125 3348360 3375000 3487875 3537000 3684375 3993750 4093750 4185450 4421250 4437500 4650500 4792500 4912500 5022540 5325000 5580600 5813125 5895000 5990625 6140625 6278175 6656250 6975750 7368750 7987500 8187500 8370900 8842500 8875000 9301000 9585000 9825000 9984375 10045080 10463625 11053125 11626250 11981250 12281250 12556350 13312500 13951500 14737500 15975000 16375000 16741800 17439375 17685000 18421875 19968750 20927250 22106250 23252500 23962500 24562500 25112700 26625000 27903000 29065625 29475000 29953125 31390875 34878750 36843750 39937500 41854500 44212500 46505000 47925000 49125000 50225400 52318125 55265625 58131250 59906250 62781750 69757500 73687500 79875000 83709000 87196875 88425000 104636250 110531250 116262500 119812500 125563500 139515000 145328125 147375000 156954375 174393750 209272500 221062500 232525000 239625000 251127000 261590625 290656250 313908750 348787500 418545000 435984375 442125000 523181250 581312500 627817500 697575000 784771875 871968750 1046362500 1162625000 1255635000 1307953125 1569543750 1743937500 2092725000 2615906250 3139087500 3487875000 3923859375 5231812500 6278175000 7847718750 10463625000 15695437500 31390875000
• Sum of all divisors σ(n): 111373574400
• Sum of proper divisors (its aliquot sum) s(n): 79982699400
• 31390875000 is an abundant number, because the sum of its proper divisors (79982699400) is greater than itself. Its abundance is 48591824400

Bases of 31390875000

• Binary: 11101001111000010101011110101111000₂
• Hexadecimal: 0x74F0ABD78
• Base-36: EF5BE60

Squares and roots of 31390875000

• 31390875000 squared (31390875000²) is 985387033265625000000
• 31390875000 cubed (31390875000³) is 30932161187862076171875000000000
• The square root of 31390875000 is 177174.7019187559
• The cube root of 31390875000 is 3154.5286336303

Scales and comparisons

• 31,390,875,000 seconds is equal to 998 years, 6 weeks, 6 days, 7 hours, 30 minutes.
• To count from 1 to 31,390,875,000 would take you about one thousand, nine hundred ninety-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 31390875000 cubic inches would be around 262.9 feet tall.

Recreational maths with 31390875000

• 31390875000 backwards is 00057809313
• 31390875000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31390875000's digits is 36
• More coming soon!