28390563840

Names of 28390563840

• Cardinal: 28390563840 can be written as Twenty-eight billion, three hundred ninety million, five hundred sixty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.839056384 × 10¹⁰

Factors of 28390563840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 327

Divisors of 28390563840

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 31 32 40 48 58 60 62 64 80 87 93 96 116 120 124 128 145 155 160 174 186 192 232 240 248 256 257 290 310 320 348 372 384 435 464 465 480 496 512 514 580 620 640 696 744 768 771 870 899 928 930 960 992 1024 1028 1160 1240 1280 1285 1392 1488 1536 1542 1740 1798 1856 1860 1920 1984 2048 2056 2320 2480 2560 2570 2697 2784 2976 3072 3084 3480 3596 3712 3720 3840 3855 3968 4096 4112 4495 4640 4960 5120 5140 5394 5568 5952 6144 6168 6960 7192 7424 7440 7453 7680 7710 7936 7967 8192 8224 8990 9280 9920 10240 10280 10788 11136 11904 12288 12336 13485 13920 14384 14848 14880 14906 15360 15420 15872 15934 16448 17980 18560 19840 20480 20560 21576 22272 22359 23808 23901 24576 24672 26970 27840 28768 29696 29760 29812 30720 30840 31744 31868 32896 35960 37120 37265 39680 39835 40960 41120 43152 44544 44718 47616 47802 49344 53940 55680 57536 59392 59520 59624 61440 61680 63488 63736 65792 71920 74240 74530 79360 79670 82240 86304 89088 89436 95232 95604 98688 107880 111360 111795 115072 118784 119040 119248 119505 122880 123360 126976 127472 131584 143840 148480 149060 158720 159340 164480 172608 178176 178872 190464 191208 197376 215760 222720 223590 230144 231043 237568 238080 238496 239010 246720 253952 254944 263168 287680 296960 298120 317440 318680 328960 345216 356352 357744 380928 382416 394752 431520 445440 447180 460288 462086 476160 476992 478020 493440 509888 526336 575360 593920 596240 634880 637360 657920 690432 693129 712704 715488 761856 764832 789504 863040 890880 894360 920576 924172 952320 953984 956040 986880 1019776 1052672 1150720 1155215 1187840 1192480 1269760 1274720 1315840 1380864 1386258 1430976 1529664 1579008 1726080 1781760 1788720 1841152 1848344 1904640 1907968 1912080 1973760 2039552 2105344 2301440 2310430 2384960 2549440 2631680 2761728 2772516 2861952 3059328 3158016 3452160 3465645 3563520 3577440 3682304 3696688 3809280 3815936 3824160 3947520 4079104 4602880 4620860 4769920 5098880 5263360 5523456 5545032 5723904 6118656 6316032 6904320 6931290 7154880 7364608 7393376 7631872 7648320 7895040 8158208 9205760 9241720 9539840 10197760 10526720 11046912 11090064 11447808 12237312 13808640 13862580 14309760 14786752 15263744 15296640 15790080 16316416 18411520 18483440 19079680 20395520 22093824 22180128 22895616 24474624 27617280 27725160 28619520 29573504 30527488 30593280 31580160 32632832 36823040 36966880 38159360 40791040 44360256 45791232 48949248 55234560 55450320 57239040 59147008 61054976 61186560 65265664 73933760 76318720 81582080 88720512 91582464 97898496 110469120 110900640 114478080 118294016 122373120 147867520 152637440 163164160 177441024 183164928 195796992 221801280 228956160 236588032 244746240 295735040 305274880 326328320 354882048 443602560 457912320 473176064 489492480 591470080 709764096 887205120 915824640 946352128 978984960 1182940160 1419528192 1774410240 1892704256 2365880320 2839056384 3548820480 4731760640 5678112768 7097640960 9463521280 14195281920 28390563840
• Sum of all divisors σ(n): 97385794560
• Sum of proper divisors (its aliquot sum) s(n): 68995230720
• 28390563840 is an abundant number, because the sum of its proper divisors (68995230720) is greater than itself. Its abundance is 40604666880

Bases of 28390563840

• Binary: 11010011100001101011010000000000000₂
• Hexadecimal: 0x69C35A000
• Base-36: D1J0B9C

Squares and roots of 28390563840

• 28390563840 squared (28390563840²) is 806024115153115545600
• 28390563840 cubed (28390563840³) is 22883479097834038272253231104000
• The square root of 28390563840 is 168494.9964835751
• The cube root of 28390563840 is 3050.6426609573

Scales and comparisons

• 28,390,563,840 seconds is equal to 902 years, 38 weeks, 11 hours, 44 minutes.
• To count from 1 to 28,390,563,840 would take you about one thousand, eight hundred five 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 28390563840 cubic inches would be around 254.2 feet tall.

Recreational maths with 28390563840

• 28390563840 backwards is 04836509382
• 28390563840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28390563840's digits is 48
• More coming soon!