129730916640

Names of 129730916640

• Cardinal: 129730916640 can be written as One hundred twenty-nine billion, seven hundred thirty million, nine hundred sixteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2973091664 × 10¹¹

Factors of 129730916640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 9486

Divisors of 129730916640

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 169 195 208 240 260 312 338 390 416 480 507 520 624 676 780 845 1014 1040 1248 1352 1560 1690 2028 2080 2197 2535 2704 3120 3380 4056 4394 5070 5408 6240 6591 6760 8112 8788 9463 10140 10985 13182 13520 16224 17576 18926 20280 21970 26364 27040 28389 28561 32955 35152 37852 40560 43940 47315 52728 56778 57122 65910 70304 75704 81120 85683 87880 94630 105456 113556 114244 123019 131820 141945 142805 151408 171366 175760 189260 210912 227112 228488 246038 263640 283890 285610 302816 342732 351520 369057 378520 428415 454224 456976 492076 527280 567780 571220 615095 685464 738114 757040 856830 908448 913952 984152 1054560 1135560 1142440 1230190 1370928 1476228 1514080 1599247 1713660 1845285 1968304 2271120 2284880 2460380 2741856 2952456 3198494 3427320 3690570 3936608 4542240 4569760 4797741 4920760 5904912 6396988 6854640 7381140 7996235 9595482 9841520 11809824 12793976 13709280 14762280 15992470 19190964 19683040 20790211 23988705 25587952 29524560 31984940 38381928 41580422 47977410 51175904 59049120 62370633 63969880 76763856 83160844 95954820 103951055 124741266 127939760 153527712 166321688 191909640 207902110 249482532 255879520 270272743 311853165 332643376 383819280 415804220 498965064 540545486 623706330 665286752 767638560 810818229 831608440 997930128 1081090972 1247412660 1351363715 1621636458 1663216880 1995860256 2162181944 2494825320 2702727430 3243272916 3326433760 4054091145 4324363888 4989650640 5405454860 6486545832 8108182290 8648727776 9979301280 10810909720 12973091664 16216364580 21621819440 25946183328 32432729160 43243638880 64865458320 129730916640
• Sum of all divisors σ(n): 442752343488
• Sum of proper divisors (its aliquot sum) s(n): 313021426848
• 129730916640 is an abundant number, because the sum of its proper divisors (313021426848) is greater than itself. Its abundance is 183290510208

Bases of 129730916640

• Binary: 1111000110100100100001011000100100000₂
• Hexadecimal: 0x1E3490B120
• Base-36: 1NLIFRXC

Squares and roots of 129730916640

• 129730916640 squared (129730916640²) is 16830110732254628889600
• 129730916640 cubed (129730916640³) is 2183385692448094619730833362944000
• The square root of 129730916640 is 360181.7827708669
• The cube root of 129730916640 is 5062.2994209939

Scales and comparisons

• 129,730,916,640 seconds is equal to 4,125 years, 2 weeks, 1 day, 5 hours, 44 minutes.
• To count from 1 to 129,730,916,640 would take you about eight thousand, two hundred fifty 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 129730916640 cubic inches would be around 421.9 feet tall.

Recreational maths with 129730916640

• 129730916640 backwards is 046619037921
• 129730916640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129730916640's digits is 48
• More coming soon!