129735787664

Names of 129735787664

• Cardinal: 129735787664 can be written as One hundred twenty-nine billion, seven hundred thirty-five million, seven hundred eighty-seven thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.29735787664 × 10¹¹

Factors of 129735787664

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 50

Divisors of 129735787664

• Number of divisors d(n): 140
• Complete list of divisors:
  1 2 4 7 8 14 16 28 41 49 56 82 98 112 164 196 287 328 343 392 574 656 686 784 1148 1372 1681 2009 2296 2401 2744 3362 4018 4592 4802 5488 6724 8036 9604 11767 13448 14063 16072 16807 19208 23534 26896 28126 32144 33614 38416 47068 56252 67228 68921 82369 94136 98441 112504 117649 134456 137842 164738 188272 196882 225008 235298 268912 275684 329476 393764 470596 482447 551368 576583 658952 689087 787528 941192 964894 1102736 1153166 1317904 1378174 1575056 1882384 1929788 2306332 2756348 3377129 3859576 4036081 4612664 4823609 5512696 6754258 7719152 8072162 9225328 9647218 11025392 13508516 16144324 19294436 23639903 27017032 28252567 32288648 38588872 47279806 54034064 56505134 64577296 77177744 94559612 113010268 165479321 189119224 197767969 226020536 330958642 378238448 395535938 452041072 661917284 791071876 1158355247 1323834568 1582143752 2316710494 2647669136 3164287504 4633420988 8108486729 9266841976 16216973458 18533683952 32433946916 64867893832 129735787664
• Sum of all divisors σ(n): 300587888748
• Sum of proper divisors (its aliquot sum) s(n): 170852101084
• 129735787664 is an abundant number, because the sum of its proper divisors (170852101084) is greater than itself. Its abundance is 41116313420

Bases of 129735787664

• Binary: 1111000110100110110110000010010010000₂
• Hexadecimal: 0x1E34DB0490
• Base-36: 1NLLC6FK

Squares and roots of 129735787664

• 129735787664 squared (129735787664²) is 16831374600798494576896
• 129735787664 cubed (129735787664³) is 2183631641302436257279034976210944
• The square root of 129735787664 is 360188.5446040727
• The cube root of 129735787664 is 5062.3627784777

Scales and comparisons

• 129,735,787,664 seconds is equal to 4,125 years, 10 weeks, 1 day, 14 hours, 47 minutes, 44 seconds.
• To count from 1 to 129,735,787,664 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 129735787664 cubic inches would be around 421.9 feet tall.

Recreational maths with 129735787664

• 129735787664 backwards is 466787537921
• The number of decimal digits it has is: 12
• The sum of 129735787664's digits is 65
• More coming soon!