28156590720

Names of 28156590720

• Cardinal: 28156590720 can be written as Twenty-eight billion, one hundred fifty-six million, five hundred ninety thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.815659072 × 10¹⁰

Factors of 28156590720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1329

Divisors of 28156590720

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 31 32 36 40 45 48 60 62 64 72 80 90 93 96 120 124 128 137 144 155 160 180 186 192 240 248 274 279 288 310 320 360 372 384 411 465 480 496 548 558 576 620 640 685 720 744 822 930 960 992 1096 1116 1151 1152 1233 1240 1370 1395 1440 1488 1644 1860 1920 1984 2055 2192 2232 2302 2466 2480 2740 2790 2880 2976 3288 3453 3720 3968 4110 4247 4384 4464 4604 4932 4960 5480 5580 5755 5760 5952 6165 6576 6906 7440 8220 8494 8768 8928 9208 9864 9920 10359 10960 11160 11510 11904 12330 12741 13152 13812 14880 16440 16988 17265 17536 17856 18416 19728 19840 20718 21235 21920 22320 23020 24660 25482 26304 27624 29760 32880 33976 34530 35681 35712 36832 38223 39456 41436 42470 43840 44640 46040 49320 50964 51795 52608 55248 59520 63705 65760 67952 69060 71362 73664 76446 78912 82872 84940 87680 89280 92080 98640 101928 103590 107043 110496 127410 131520 135904 138120 142724 147328 152892 157687 157824 165744 169880 178405 178560 184160 191115 197280 203856 207180 214086 220992 254820 263040 271808 276240 285448 305784 315374 321129 331488 339760 356810 368320 382230 394560 407712 414360 428172 441984 473061 509640 535215 543616 552480 570896 611568 630748 642258 662976 679520 713620 736640 764460 788435 789120 815424 828720 856344 946122 1019280 1070430 1104960 1141792 1223136 1261496 1284516 1325952 1359040 1419183 1427240 1528920 1576870 1605645 1630848 1657440 1712688 1892244 2038560 2140860 2209920 2283584 2365305 2446272 2522992 2569032 2718080 2838366 2854480 3057840 3153740 3211290 3314880 3425376 3784488 4077120 4281720 4567168 4730610 4888297 4892544 5045984 5138064 5676732 5708960 6115680 6307480 6422580 6629760 6850752 7095915 7568976 8154240 8563440 9461220 9776594 10091968 10276128 11353464 11417920 12231360 12614960 12845160 13701504 14191830 14664891 15137952 17126880 18922440 19553188 20183936 20552256 22706928 22835840 24441485 24462720 25229920 25690320 28383660 29329782 30275904 34253760 37844880 39106376 41104512 43994673 45413856 48882970 50459840 51380640 56767320 58659564 60551808 68507520 73324455 75689760 78212752 87989346 90827712 97765940 100919680 102761280 113534640 117319128 146648910 151379520 156425504 175978692 181655424 195531880 205522560 219973365 227069280 234638256 293297820 302759040 312851008 351957384 391063760 439946730 454138560 469276512 586595640 625702016 703914768 782127520 879893460 908277120 938553024 1173191280 1407829536 1564255040 1759786920 1877106048 2346382560 2815659072 3128510080 3519573840 4692765120 5631318144 7039147680 9385530240 14078295360 28156590720
• Sum of all divisors σ(n): 101185044480
• Sum of proper divisors (its aliquot sum) s(n): 73028453760
• 28156590720 is an abundant number, because the sum of its proper divisors (73028453760) is greater than itself. Its abundance is 44871863040

Bases of 28156590720

• Binary: 11010001110010000110111101010000000₂
• Hexadecimal: 0x68E437A80
• Base-36: CXNPGG0

Squares and roots of 28156590720

• 28156590720 squared (28156590720²) is 792793600973590118400
• 28156590720 cubed (28156590720³) is 22322364948048370492825141248000
• The square root of 28156590720 is 167799.2572093213
• The cube root of 28156590720 is 3042.2391859099

Scales and comparisons

• 28,156,590,720 seconds is equal to 895 years, 15 weeks, 1 day, 11 hours, 12 minutes.
• To count from 1 to 28,156,590,720 would take you about one thousand, seven hundred ninety 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 28156590720 cubic inches would be around 253.5 feet tall.

Recreational maths with 28156590720

• 28156590720 backwards is 02709565182
• 28156590720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28156590720's digits is 45
• More coming soon!