129532480

Names of 129532480

• Cardinal: 129532480 can be written as One hundred twenty-nine million, five hundred thirty-two thousand, four hundred eighty.

Scientific notation

• Scientific notation: 1.2953248 × 10⁸

Factors of 129532480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 776

Divisors of 129532480

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 49 55 56 64 70 77 80 88 98 110 112 140 154 160 176 196 220 224 245 280 308 320 352 385 392 440 448 490 539 560 616 704 751 770 784 880 980 1078 1120 1232 1502 1540 1568 1760 1960 2156 2240 2464 2695 3004 3080 3136 3520 3755 3920 4312 4928 5257 5390 6008 6160 7510 7840 8261 8624 10514 10780 12016 12320 15020 15680 16522 17248 21028 21560 24032 24640 26285 30040 33044 34496 36799 41305 42056 43120 48064 52570 57827 60080 66088 73598 82610 84112 86240 105140 115654 120160 132176 147196 165220 168224 172480 183995 210280 231308 240320 264352 289135 294392 330440 336448 367990 404789 420560 462616 528704 578270 588784 660880 735980 809578 841120 925232 1156540 1177568 1321760 1471960 1619156 1682240 1850464 2023945 2313080 2355136 2643520 2943920 3238312 3700928 4047890 4626160 5887840 6476624 8095780 9252320 11775680 12953248 16191560 18504640 25906496 32383120 64766240 129532480
• Sum of all divisors σ(n): 391948416
• Sum of proper divisors (its aliquot sum) s(n): 262415936
• 129532480 is an abundant number, because the sum of its proper divisors (262415936) is greater than itself. Its abundance is 132883456

Bases of 129532480

• Binary: 111101110001000001001000000₂
• Hexadecimal: 0x7B88240
• Base-36: 254BWG

Squares and roots of 129532480

• 129532480 squared (129532480²) is 16778663374950400
• 129532480 cubed (129532480³) is 2173381878042495188992000
• The square root of 129532480 is 11381.2336765397
• The cube root of 129532480 is 505.9717003133

Scales and comparisons

• 129,532,480 seconds is equal to 4 years, 6 weeks, 1 day, 5 hours, 14 minutes, 40 seconds.
• To count from 1 to 129,532,480 would take you about 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 129532480 cubic inches would be around 42.2 feet tall.

Recreational maths with 129532480

• 129532480 backwards is 084235921
• The number of decimal digits it has is: 9
• The sum of 129532480's digits is 34
• More coming soon!