990870470856

Names of 990870470856

• Cardinal: 990870470856 can be written as Nine hundred ninety billion, eight hundred seventy million, four hundred seventy thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 9.90870470856 × 10¹¹

Factors of 990870470856

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 4682

Divisors of 990870470856

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 31 36 42 49 54 56 62 63 72 81 84 93 98 108 124 126 147 162 168 186 189 196 216 217 248 252 279 294 324 343 372 378 392 434 441 504 558 567 588 648 651 686 744 756 837 868 882 961 1029 1116 1134 1176 1302 1323 1372 1512 1519 1674 1736 1764 1922 1953 2058 2232 2268 2511 2604 2646 2744 2883 3038 3087 3348 3528 3844 3906 3969 4116 4536 4557 4639 5022 5208 5292 5766 5859 6076 6174 6696 6727 7688 7812 7938 8232 8649 9114 9261 9278 10044 10584 10633 11532 11718 12152 12348 13454 13671 13917 15624 15876 17298 17577 18228 18522 18556 20088 20181 21266 23064 23436 24696 25947 26908 27342 27783 27834 31752 31899 32473 34596 35154 36456 37044 37112 40362 41013 41751 42532 46872 47089 51894 53816 54684 55566 55668 60543 63798 64946 69192 70308 74088 77841 80724 82026 83502 85064 94178 95697 97419 103788 109368 111132 111336 121086 123039 125253 127596 129892 140616 141267 143809 155682 161448 164052 167004 181629 188356 191394 194838 207576 222264 227311 242172 246078 250506 255192 259784 282534 287091 287618 292257 311364 328104 329623 334008 363258 375759 376712 382788 389676 423801 431427 454622 484344 492156 501012 544887 565068 574182 575236 584514 622728 659246 681933 726516 751518 765576 779352 847602 861273 862854 876771 909244 984312 988869 1002024 1006663 1089774 1130136 1148364 1150472 1169028 1271403 1294281 1318492 1363866 1453032 1503036 1591177 1695204 1722546 1725708 1753542 1818488 1977738 2013326 2045799 2179548 2296728 2338056 2542806 2588562 2630313 2636984 2727732 2966607 3006072 3019989 3182354 3390408 3445092 3451416 3507084 3814209 3882843 3955476 4026652 4091598 4359096 4458079 4773531 5085612 5177124 5260626 5455464 5933214 6039978 6137397 6364708 6890184 7014168 7046641 7628418 7765686 7910952 8053304 8183196 8899821 8916158 9059967 9547062 10171224 10354248 10521252 11648529 11866428 12079956 12274794 12729416 13374237 14093282 14320593 15256836 15531372 16366392 17799642 17832316 18119934 18412191 19094124 21042504 21139923 23297058 23732856 24159912 24549588 26699463 26748474 27179901 28186564 28641186 30513672 31062744 31206553 35599284 35664632 36239868 36824382 38188248 40122711 42279846 42961779 46594116 49099176 49326487 53398926 53496948 54359802 56373128 57282372 62413106 63419769 71198568 72479736 73648764 80245422 81539703 84559692 85923558 93188232 93619659 98652974 106797852 106993896 108719604 114564744 120368133 124826212 126839538 128885337 147297528 147979461 160490844 163079406 169119384 171847116 187239318 190259307 197305948 213595704 217439208 218445871 240736266 249652424 253679076 257770674 280858977 295958922 320981688 326158812 343694232 361104399 374478636 380518614 394611896 436891742 443938383 481472532 507358152 515541348 561717954 570777921 591917844 652317624 655337613 722208798 748957272 761037228 842576931 873783484 887876766 962945064 1031082696 1123435908 1141555842 1183835688 1310675226 1331815149 1444417596 1522074456 1529121097 1685153862 1747566968 1775753532 1966012839 2246871816 2283111684 2527730793 2621350452 2663630298 2888835192 3058242194 3370307724 3551507064 3932025678 3995445447 4566223368 4587363291 5055461586 5242700904 5327260596 5898038517 6116484388 6740615448 7864051356 7990890894 9174726582 10110923172 10654521192 11796077034 12232968776 13762089873 15728102712 15981781788 17694115551 18349453164 20221846344 23592154068 27524179746 31963563576 35388231102 36698906328 41286269619 47184308136 55048359492 70776462204 82572539238 110096718984 123858808857 141552924408 165145078476 247717617714 330290156952 495435235428 990870470856
• Sum of all divisors σ(n): 3345059520000
• Sum of proper divisors (its aliquot sum) s(n): 2354189049144
• 990870470856 is an abundant number, because the sum of its proper divisors (2354189049144) is greater than itself. Its abundance is 1363318578288

Bases of 990870470856

• Binary: 1110011010110100011110111000000011001000₂
• Hexadecimal: 0xE6B47B80C8
• Base-36: CN76P0I0

Squares and roots of 990870470856

• 990870470856 squared (990870470856²) is 981824290014391145372736
• 990870470856 cubed (990870470856³) is 972860696544417653231640065944982016
• The square root of 990870470856 is 995424.7690589179
• The cube root of 990870470856 is 9969.4751543733

Scales and comparisons

• 990,870,470,856 seconds is equal to 31,506 years, 32 weeks, 5 hours, 27 minutes, 36 seconds.
• To count from 1 to 990,870,470,856 would take you about sixty-three thousand and thirteen 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 990870470856 cubic inches would be around 830.8 feet tall.

Recreational maths with 990870470856

• 990870470856 backwards is 658074078099
• 990870470856 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 990870470856's digits is 63
• More coming soon!