16291145728

Names of 16291145728

• Cardinal: 16291145728 can be written as Sixteen billion, two hundred ninety-one million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.6291145728 × 10¹⁰

Factors of 16291145728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 415

Divisors of 16291145728

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 32 44 52 64 88 104 121 128 143 169 176 208 242 256 286 338 352 389 416 484 512 572 676 704 778 832 968 1024 1144 1352 1408 1556 1573 1664 1859 1936 2048 2288 2704 2816 3112 3146 3328 3718 3872 4279 4576 5057 5408 5632 6224 6292 6656 7436 7744 8558 9152 10114 10816 11264 12448 12584 13312 14872 15488 17116 18304 20228 20449 21632 22528 24896 25168 26624 29744 30976 34232 36608 40456 40898 43264 47069 49792 50336 55627 59488 61952 65741 68464 73216 80912 81796 86528 94138 99584 100672 111254 118976 123904 131482 136928 146432 161824 163592 173056 188276 199168 201344 222508 237952 247808 262964 273856 292864 323648 327184 346112 376552 398336 402688 445016 475904 525928 547712 611897 647296 654368 723151 753104 796672 805376 890032 951808 1051856 1095424 1223794 1294592 1308736 1446302 1506208 1610752 1780064 1903616 2103712 2190848 2447588 2589184 2617472 2892604 3012416 3221504 3560128 3807232 4207424 4381696 4895176 5178368 5234944 5785208 6024832 7120256 7954661 8414848 8763392 9790352 10356736 10469888 11570416 12049664 14240512 15909322 16829696 19580704 20939776 23140832 24099328 28481024 31818644 33659392 39161408 41879552 46281664 48198656 56962048 63637288 67318784 78322816 92563328 96397312 113924096 127274576 134637568 156645632 185126656 254549152 313291264 370253312 509098304 626582528 740506624 1018196608 1253165056 1481013248 2036393216 4072786432 8145572864 16291145728
• Sum of all divisors σ(n): 38870599950
• Sum of proper divisors (its aliquot sum) s(n): 22579454222
• 16291145728 is an abundant number, because the sum of its proper divisors (22579454222) is greater than itself. Its abundance is 6288308494

Bases of 16291145728

• Binary: 1111001011000001110010100000000000₂
• Hexadecimal: 0x3CB072800
• Base-36: 7HFBSHS

Squares and roots of 16291145728

• 16291145728 squared (16291145728²) is 265401429130932649984
• 16291145728 cubed (16291145728³) is 4323693358391488193442560868352
• The square root of 16291145728 is 127636.7726323413
• The cube root of 16291145728 is 2535.0345119123

Scales and comparisons

• 16,291,145,728 seconds is equal to 518 years, 2 days, 22 hours, 15 minutes, 28 seconds.
• To count from 1 to 16,291,145,728 would take you about one thousand and thirty-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 16291145728 cubic inches would be around 211.3 feet tall.

Recreational maths with 16291145728

• 16291145728 backwards is 82754119261
• The number of decimal digits it has is: 11
• The sum of 16291145728's digits is 46
• More coming soon!