821434357128

Names of 821434357128

• Cardinal: 821434357128 can be written as Eight hundred twenty-one billion, four hundred thirty-four million, three hundred fifty-seven thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 8.21434357128 × 10¹¹

Factors of 821434357128

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 181

Divisors of 821434357128

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 21 22 24 28 31 33 42 44 49 56 62 66 77 84 88 93 98 124 127 132 147 154 168 186 196 217 231 248 254 264 294 308 341 372 381 392 434 462 508 539 588 616 651 682 744 762 868 889 924 1016 1023 1078 1176 1302 1364 1397 1519 1524 1617 1736 1778 1848 2046 2156 2387 2604 2667 2728 2794 3038 3048 3234 3556 3937 4092 4191 4312 4557 4774 5208 5334 5588 6076 6223 6468 7112 7161 7874 8184 8382 9114 9548 9779 10668 11176 11811 12152 12446 12936 14322 15748 16129 16709 16764 18228 18669 19096 19558 21336 23622 24892 27559 28644 29337 31496 32258 33418 33528 36456 37338 39116 43307 47244 48387 49784 50127 55118 57288 58674 64516 66836 68453 74676 78232 82677 86614 94488 96774 100254 110236 112903 117348 129032 129921 133672 136906 149352 165354 173228 177419 192913 193548 200508 205359 220472 225806 234696 259842 273812 303149 330708 338709 346456 354838 385826 387096 401016 410718 451612 499999 519684 532257 547624 578739 606298 661416 677418 709676 771652 790321 821436 903224 909447 999998 1039368 1064514 1157478 1212596 1241933 1354836 1419352 1499997 1543304 1580642 1642872 1818894 1999996 2048383 2122043 2129028 2314956 2370963 2425192 2483866 2709672 2999994 3161284 3499993 3637788 3725799 3999992 4096766 4244086 4258056 4629912 4741926 4967732 5499989 5999988 6145149 6322568 6366129 6999986 7275576 7451598 8193532 8488172 8693531 9483852 9935464 10499979 10999978 11999976 12290298 12732258 13999972 14338681 14903196 16387064 16499967 16976344 17387062 18967704 20999958 21999956 22532213 24499951 24580596 25464516 26080593 27999944 28677362 29806392 32999934 34774124 38499923 41999916 43016043 43999912 45064426 48999902 49161192 50929032 52161186 57354724 63499873 65999868 67596639 69548248 73499853 76999846 83999832 86032086 90128852 97999804 100370767 104322372 114709448 115499769 126999746 131999736 135193278 146999706 153999692 157725491 172064172 180257704 190499619 195999608 200741534 208644744 230999538 253999492 269499461 270386556 293999412 301112301 307999384 315450982 344128344 380999238 401483068 444499111 461999076 473176473 507998984 538998922 540773112 587998824 602224602 630901964 698498603 761998476 802966136 808498383 888998222 923998152 946352946 1077997844 1104078437 1204449204 1261803928 1333497333 1396997206 1523996952 1616996766 1777996444 1892705892 2095495809 2155995688 2208156874 2408898408 2666994666 2793994412 3111493777 3233993532 3312235311 3555992888 3785411784 4190991618 4416313748 4889490221 5333989332 5587988824 6222987554 6467987064 6624470622 8381983236 8832627496 9334481331 9778980442 10667978664 12445975108 13248941244 14668470663 16763966472 18668962662 19557960884 24891950216 26497882488 29336941326 34226431547 37337925324 39115921768 58673882652 68452863094 74675850648 102679294641 117347765304 136905726188 205358589282 273811452376 410717178564 821434357128
• Sum of all divisors σ(n): 2711450419200
• Sum of proper divisors (its aliquot sum) s(n): 1890016062072
• 821434357128 is an abundant number, because the sum of its proper divisors (1890016062072) is greater than itself. Its abundance is 1068581704944

Bases of 821434357128

• Binary: 1011111101000001010011011001010110001000₂
• Hexadecimal: 0xBF414D9588
• Base-36: AHD0T2FC

Squares and roots of 821434357128

• 821434357128 squared (821434357128²) is 674754403070290644408384
• 821434357128 cubed (821434357128³) is 554266449305331584885713758933361152
• The square root of 821434357128 is 906330.1590082941
• The cube root of 821434357128 is 9365.3559407061

Scales and comparisons

• 821,434,357,128 seconds is equal to 26,119 years, 3 weeks, 5 days, 2 hours, 18 minutes, 48 seconds.
• To count from 1 to 821,434,357,128 would take you about fifty-two thousand, two hundred thirty-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 821434357128 cubic inches would be around 780.4 feet tall.

Recreational maths with 821434357128

• 821434357128 backwards is 821753434128
• The number of decimal digits it has is: 12
• The sum of 821434357128's digits is 48
• More coming soon!