28420180992

Names of 28420180992

• Cardinal: 28420180992 can be written as Twenty-eight billion, four hundred twenty million, one hundred eighty thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.8420180992 × 10¹⁰

Factors of 28420180992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1622

Divisors of 28420180992

• Number of divisors d(n): 440
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 31 32 36 42 48 54 56 62 63 64 72 81 84 93 96 108 112 124 126 128 144 162 168 186 189 192 216 217 224 248 252 256 279 288 324 336 372 378 384 432 434 448 496 504 512 558 567 576 648 651 672 744 756 768 837 864 868 896 992 1008 1024 1116 1134 1152 1296 1302 1344 1488 1512 1536 1579 1674 1728 1736 1792 1953 1984 2016 2232 2268 2304 2511 2592 2604 2688 2976 3024 3072 3158 3348 3456 3472 3584 3906 3968 4032 4464 4536 4608 4737 5022 5184 5208 5376 5859 5952 6048 6316 6696 6912 6944 7168 7812 7936 8064 8928 9072 9216 9474 10044 10368 10416 10752 11053 11718 11904 12096 12632 13392 13824 13888 14211 15624 15872 16128 17577 17856 18144 18948 20088 20736 20832 21504 22106 23436 23808 24192 25264 26784 27648 27776 28422 31248 31744 32256 33159 35154 35712 36288 37896 40176 41472 41664 42633 44212 46872 47616 48384 48949 50528 53568 55552 56844 62496 64512 66318 70308 71424 72576 75792 80352 82944 83328 85266 88424 93744 95232 96768 97898 99477 101056 107136 111104 113688 124992 127899 132636 140616 142848 145152 146847 151584 160704 166656 170532 176848 187488 193536 195796 198954 202112 214272 222208 227376 249984 255798 265272 281232 285696 290304 293694 298431 303168 321408 333312 341064 342643 353696 374976 391592 397908 404224 428544 440541 454752 499968 511596 530544 562464 580608 587388 596862 606336 642816 666624 682128 685286 707392 749952 783184 795816 808448 857088 881082 895293 909504 999936 1023192 1027929 1061088 1124928 1174776 1193724 1212672 1285632 1321623 1364256 1370572 1414784 1499904 1566368 1591632 1616896 1762164 1790586 1819008 1999872 2046384 2055858 2122176 2249856 2349552 2387448 2425344 2571264 2643246 2728512 2741144 2829568 2999808 3083787 3132736 3183264 3524328 3581172 3638016 3964869 4092768 4111716 4244352 4499712 4699104 4774896 4850688 5286492 5457024 5482288 5659136 5999616 6167574 6265472 6366528 7048656 7162344 7276032 7929738 8185536 8223432 8488704 8999424 9251361 9398208 9549792 10572984 10914048 10964576 11318272 12335148 12530944 12733056 14097312 14324688 14552064 15859476 16371072 16446864 16977408 17998848 18502722 18796416 19099584 21145968 21828096 21929152 24670296 25061888 25466112 27754083 28194624 28649376 31718952 32742144 32893728 33954816 37005444 37592832 38199168 42291936 43656192 43858304 49340592 50123776 50932224 55508166 56389248 57298752 63437904 65484288 65787456 74010888 75185664 76398336 84583872 87716608 98681184 101864448 111016332 112778496 114597504 126875808 130968576 131574912 148021776 150371328 152796672 169167744 175433216 197362368 222032664 225556992 229195008 253751616 263149824 296043552 305593344 338335488 350866432 394724736 444065328 451113984 458390016 507503232 526299648 592087104 676670976 789449472 888130656 916780032 1015006464 1052599296 1184174208 1353341952 1578898944 1776261312 2030012928 2368348416 3157797888 3552522624 4060025856 4736696832 7105045248 9473393664 14210090496 28420180992
• Sum of all divisors σ(n): 100184437760
• Sum of proper divisors (its aliquot sum) s(n): 71764256768
• 28420180992 is an abundant number, because the sum of its proper divisors (71764256768) is greater than itself. Its abundance is 43344075776

Bases of 28420180992

• Binary: 11010011101111110011000110000000000₂
• Hexadecimal: 0x69DF98C00
• Base-36: D20N400

Squares and roots of 28420180992

• 28420180992 squared (28420180992²) is 807706687618038104064
• 28420180992 cubed (28420180992³) is 22955170250553448281451410751488
• The square root of 28420180992 is 168582.8609082193
• The cube root of 28420180992 is 3051.7031065779

Scales and comparisons

• 28,420,180,992 seconds is equal to 903 years, 35 weeks, 6 hours, 43 minutes, 12 seconds.
• To count from 1 to 28,420,180,992 would take you about one thousand, eight hundred seven 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 28420180992 cubic inches would be around 254.3 feet tall.

Recreational maths with 28420180992

• 28420180992 backwards is 29908102482
• The number of decimal digits it has is: 11
• The sum of 28420180992's digits is 45
• More coming soon!