12391292928

Names of 12391292928

• Cardinal: 12391292928 can be written as Twelve billion, three hundred ninety-one million, two hundred ninety-two thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.2391292928 × 10¹⁰

Factors of 12391292928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 271

Divisors of 12391292928

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 19 21 24 28 32 34 38 42 48 51 56 57 64 68 76 84 96 102 112 114 119 128 133 136 152 168 192 204 223 224 228 238 256 266 272 304 323 336 357 384 399 408 446 448 456 476 512 532 544 608 646 669 672 714 768 798 816 892 896 912 952 969 1024 1064 1088 1216 1292 1338 1344 1428 1536 1561 1596 1632 1784 1792 1824 1904 1938 2048 2128 2176 2261 2432 2584 2676 2688 2856 3072 3122 3192 3264 3568 3584 3648 3791 3808 3876 4096 4237 4256 4352 4522 4683 4864 5168 5352 5376 5712 6144 6244 6384 6528 6783 7136 7168 7296 7582 7616 7752 8192 8474 8512 8704 9044 9366 9728 10336 10704 10752 11373 11424 12288 12488 12711 12768 13056 13566 14272 14336 14592 15164 15232 15504 16948 17024 17408 18088 18732 19456 20672 21408 21504 22746 22848 24576 24976 25422 25536 26112 26537 27132 28544 28672 29184 29659 30328 30464 31008 33896 34048 34816 36176 37464 38912 41344 42816 43008 45492 45696 49952 50844 51072 52224 53074 54264 57088 57344 58368 59318 60656 60928 62016 67792 68096 69632 72029 72352 74928 77824 79611 82688 85632 86016 88977 90984 91392 99904 101688 102144 104448 106148 108528 114176 116736 118636 121312 121856 124032 135584 136192 139264 144058 144704 149856 155648 159222 165376 171264 172032 177954 181968 182784 199808 203376 204288 208896 212296 216087 217056 228352 233472 237272 242624 243712 248064 271168 272384 288116 289408 299712 318444 330752 342528 355908 363936 365568 399616 406752 408576 417792 424592 432174 434112 456704 466944 474544 485248 487424 496128 504203 542336 544768 576232 578816 599424 636888 661504 685056 711816 727872 731136 799232 813504 817152 849184 864348 868224 913408 949088 970496 974848 992256 1008406 1084672 1089536 1152464 1157632 1198848 1273776 1323008 1370112 1423632 1455744 1462272 1512609 1598464 1627008 1634304 1698368 1728696 1736448 1826816 1898176 1940992 1984512 2016812 2169344 2304928 2315264 2397696 2547552 2646016 2740224 2847264 2911488 2924544 3025218 3196928 3254016 3268608 3396736 3457392 3472896 3796352 3881984 3969024 4033624 4338688 4609856 4630528 4795392 5095104 5480448 5694528 5822976 6050436 6393856 6508032 6793472 6914784 6945792 7592704 7763968 7938048 8067248 8677376 9219712 9261056 9590784 10190208 11389056 11645952 12100872 12787712 13016064 13586944 13829568 13891584 15185408 15527936 16134496 17354752 18439424 18522112 19181568 20380416 22778112 23291904 24201744 26032128 27173888 27659136 27783168 30370816 31055872 32268992 34709504 36878848 38363136 40760832 45556224 46583808 48403488 52064256 54347776 55318272 55566336 60741632 64537984 73757696 81521664 91112448 93167616 96806976 104128512 108695552 110636544 121483264 129075968 147515392 163043328 182224896 193613952 217391104 221273088 242966528 258151936 295030784 326086656 364449792 387227904 442546176 516303872 590061568 652173312 728899584 774455808 885092352 1032607744 1548911616 1770184704 2065215488 3097823232 4130430976 6195646464 12391292928
• Sum of all divisors σ(n): 42276003840
• Sum of proper divisors (its aliquot sum) s(n): 29884710912
• 12391292928 is an abundant number, because the sum of its proper divisors (29884710912) is greater than itself. Its abundance is 17493417984

Bases of 12391292928

• Binary: 1011100010100101000010000000000000₂
• Hexadecimal: 0x2E2942000
• Base-36: 5OXGETC

Squares and roots of 12391292928

• 12391292928 squared (12391292928²) is 153544140427502813184
• 12391292928 cubed (12391292928³) is 1902610421415154505707004362752
• The square root of 12391292928 is 111316.1844836589
• The cube root of 12391292928 is 2314.0471724697

Scales and comparisons

• 12,391,292,928 seconds is equal to 394 years, 1 day, 17 hours, 48 minutes, 48 seconds.
• To count from 1 to 12,391,292,928 would take you about seven hundred eighty-eight 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 12391292928 cubic inches would be around 192.8 feet tall.

Recreational maths with 12391292928

• 12391292928 backwards is 82929219321
• 12391292928 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12391292928's digits is 48
• More coming soon!