30988289728

Names of 30988289728

• Cardinal: 30988289728 can be written as Thirty billion, nine hundred eighty-eight million, two hundred eighty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 3.0988289728 × 10¹⁰

Factors of 30988289728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 129

Divisors of 30988289728

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 8 11 16 22 32 37 44 64 74 79 88 121 148 158 176 242 296 316 352 407 484 592 632 704 814 869 968 1184 1264 1369 1628 1738 1936 2368 2528 2738 2923 3256 3476 3872 4477 5056 5476 5846 6512 6952 7744 8954 9559 10952 11692 13024 13904 15059 17908 19118 21904 23384 26048 27808 30118 32153 35816 38236 43808 46768 50653 55616 60236 64306 71632 76472 87616 93536 101306 108151 120472 128612 143264 152944 165649 187072 202612 216302 240944 257224 286528 305888 331298 353683 405224 432604 481888 514448 557183 611776 662596 707366 810448 865208 963776 1028896 1114366 1189661 1325192 1414732 1620896 1730416 2057792 2228732 2379322 2650384 2829464 3241792 3460832 4001587 4457464 4758644 5300768 5658928 6129013 6921664 8003174 8914928 9517288 10601536 11317856 12258026 13086271 16006348 17829856 19034576 22635712 24516052 26172542 32012696 35659712 38069152 44017457 49032104 52345084 64025392 76138304 88034914 98064208 104690168 128050784 176069828 196128416 209380336 256101568 352139656 392256832 418760672 484192027 704279312 837521344 968384054 1408558624 1936768108 2817117248 3873536216 7747072432 15494144864 30988289728
• Sum of all divisors σ(n): 70347636800
• Sum of proper divisors (its aliquot sum) s(n): 39359347072
• 30988289728 is an abundant number, because the sum of its proper divisors (39359347072) is greater than itself. Its abundance is 8371057344

Bases of 30988289728

• Binary: 11100110111000010111100011011000000₂
• Hexadecimal: 0x7370BC6C0
• Base-36: E8HMLDS

Squares and roots of 30988289728

• 30988289728 squared (30988289728²) is 960274100266470313984
• 30988289728 cubed (30988289728³) is 29757252037351904093647321956352
• The square root of 30988289728 is 176034.9105376543
• The cube root of 30988289728 is 3140.9850496505

Scales and comparisons

• 30,988,289,728 seconds is equal to 985 years, 17 weeks, 1 day, 18 hours, 15 minutes, 28 seconds.
• To count from 1 to 30,988,289,728 would take you about one thousand, nine hundred seventy 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 30988289728 cubic inches would be around 261.7 feet tall.

Recreational maths with 30988289728

• 30988289728 backwards is 82798288903
• 30988289728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30988289728's digits is 64
• More coming soon!