28075729920

Names of 28075729920

• Cardinal: 28075729920 can be written as Twenty-eight billion, seventy-five million, seven hundred twenty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.807572992 × 10¹⁰

Factors of 28075729920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 90

Divisors of 28075729920

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 49 56 60 64 70 73 80 84 96 98 105 112 120 128 140 146 147 160 168 192 196 210 219 224 240 245 256 280 292 294 320 336 343 365 384 392 420 438 448 480 490 511 512 560 584 588 640 672 686 730 735 768 784 840 876 896 960 980 1022 1024 1029 1095 1120 1168 1176 1280 1344 1372 1460 1470 1533 1536 1568 1680 1715 1752 1792 1920 1960 2044 2058 2190 2240 2336 2352 2555 2560 2688 2744 2920 2940 3066 3072 3136 3360 3430 3504 3577 3584 3840 3920 4088 4116 4380 4480 4672 4704 5110 5120 5145 5329 5376 5488 5840 5880 6132 6272 6720 6860 7008 7154 7168 7665 7680 7840 8176 8232 8760 8960 9344 9408 10220 10290 10658 10731 10752 10976 11680 11760 12264 12544 13440 13720 14016 14308 15330 15360 15680 15987 16352 16464 17520 17885 17920 18688 18816 20440 20580 21316 21462 21504 21952 23360 23520 24528 25039 25088 26645 26880 27440 28032 28616 30660 31360 31974 32704 32928 35040 35770 35840 37303 37376 37632 40880 41160 42632 42924 43904 46720 47040 49056 50078 50176 53290 53655 53760 54880 56064 57232 61320 62720 63948 65408 65856 70080 71540 74606 74752 75117 75264 79935 81760 82320 85264 85848 87808 93440 94080 98112 100156 106580 107310 107520 109760 111909 112128 114464 122640 125195 125440 127896 130816 131712 140160 143080 149212 150234 150528 159870 163520 164640 170528 171696 175616 186515 186880 188160 196224 200312 213160 214620 219520 223818 224256 228928 245280 250390 250880 255792 261121 261632 263424 280320 286160 298424 300468 319740 327040 329280 341056 343392 351232 373030 373760 375585 376320 392448 400624 426320 429240 439040 447636 457856 490560 500780 511584 522242 523264 526848 559545 560640 572320 596848 600936 639480 654080 658560 682112 686784 746060 751170 752640 783363 784896 801248 852640 858480 878080 895272 915712 981120 1001560 1023168 1044484 1053696 1119090 1121280 1144640 1193696 1201872 1278960 1305605 1308160 1317120 1364224 1373568 1492120 1502340 1566726 1569792 1602496 1705280 1716960 1756160 1790544 1827847 1831424 1962240 2003120 2046336 2088968 2238180 2289280 2387392 2403744 2557920 2611210 2616320 2634240 2728448 2747136 2984240 3004680 3133452 3204992 3410560 3433920 3581088 3655694 3662848 3916815 3924480 4006240 4092672 4177936 4476360 4578560 4774784 4807488 5115840 5222420 5268480 5456896 5483541 5494272 5968480 6009360 6266904 6409984 6821120 6867840 7162176 7311388 7833630 7848960 8012480 8185344 8355872 8952720 9139235 9157120 9549568 9614976 10231680 10444840 10967082 10988544 11936960 12018720 12533808 12819968 13642240 13735680 14324352 14622776 15667260 16024960 16370688 16711744 17905440 18278470 18314240 19099136 19229952 20463360 20889680 21934164 23873920 24037440 25067616 25639936 27284480 27417705 27471360 28648704 29245552 31334520 32049920 33423488 35810880 36556940 38198272 38459904 40926720 41779360 43868328 47747840 48074880 50135232 54835410 54942720 57297408 58491104 62669040 64099840 66846976 71621760 73113880 76919808 81853440 83558720 87736656 95495680 96149760 100270464 109670820 114594816 116982208 125338080 128199680 133693952 143243520 146227760 167117440 175473312 190991360 192299520 200540928 219341640 233964416 250676160 267387904 286487040 292455520 334234880 350946624 384599040 401081856 438683280 467928832 501352320 572974080 584911040 668469760 701893248 802163712 877366560 935857664 1002704640 1169822080 1336939520 1403786496 1754733120 1871715328 2005409280 2339644160 2807572992 3509466240 4010818560 4679288320 5615145984 7018932480 9358576640 14037864960 28075729920
• Sum of all divisors σ(n): 106175433600
• Sum of proper divisors (its aliquot sum) s(n): 78099703680
• 28075729920 is an abundant number, because the sum of its proper divisors (78099703680) is greater than itself. Its abundance is 50023973760

Bases of 28075729920

• Binary: 11010001001011100011010010000000000₂
• Hexadecimal: 0x68971A400
• Base-36: CWBKBUO

Squares and roots of 28075729920

• 28075729920 squared (28075729920²) is 788246610540783206400
• 28075729920 cubed (28075729920³) is 22130598947898454448158015488000
• The square root of 28075729920 is 167558.1389249713
• The cube root of 28075729920 is 3039.3241341451

Scales and comparisons

• 28,075,729,920 seconds is equal to 892 years, 37 weeks, 3 days, 13 hours, 52 minutes.
• To count from 1 to 28,075,729,920 would take you about one thousand, seven hundred eighty-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 28075729920 cubic inches would be around 253.3 feet tall.

Recreational maths with 28075729920

• 28075729920 backwards is 02992757082
• The number of decimal digits it has is: 11
• The sum of 28075729920's digits is 51
• More coming soon!