28187639328

Names of 28187639328

• Cardinal: 28187639328 can be written as Twenty-eight billion, one hundred eighty-seven million, six hundred thirty-nine thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8187639328 × 10¹⁰

Factors of 28187639328

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 320

Divisors of 28187639328

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 16 23 24 31 32 43 46 48 61 62 69 86 92 93 96 122 124 129 138 157 172 183 184 186 244 248 258 276 314 344 366 368 372 471 488 496 516 552 628 688 713 732 736 744 942 976 989 992 1032 1104 1256 1333 1376 1403 1426 1464 1488 1884 1891 1952 1978 2064 2139 2208 2512 2623 2666 2806 2852 2928 2967 2976 3611 3768 3782 3956 3999 4128 4209 4278 4867 5024 5246 5332 5612 5673 5704 5856 5934 6751 7222 7536 7564 7869 7912 7998 8418 8556 9577 9734 10492 10664 10833 11224 11346 11408 11868 13502 14444 14601 15072 15128 15738 15824 15996 16836 17112 19154 19468 20253 20984 21328 21666 22448 22692 22816 23736 27004 28731 28888 29202 30256 30659 31476 31648 31992 33672 34224 38308 38936 40506 41968 42656 43332 43493 44896 45384 47472 54008 57462 57776 58404 60329 60512 61318 62952 63984 67344 68448 76616 77872 81012 81313 83936 86664 86986 90768 91977 94944 108016 111941 114924 115552 116808 120658 122636 125904 127968 130479 134688 153232 155273 155744 162024 162626 173328 173972 180987 181536 183954 209281 216032 220271 223882 229848 233616 241316 243939 245272 251808 260958 296887 306464 310546 324048 325252 335823 346656 347944 361974 367908 411811 418562 440542 447764 459696 465819 467232 482632 487878 490544 521916 593774 621092 627843 648096 650504 660813 671646 695888 723948 735816 823622 837124 881084 890661 895528 919392 931638 965264 975756 981088 1043832 1187548 1235433 1242184 1255686 1301008 1321626 1343292 1391776 1447896 1471632 1647244 1674248 1762168 1781322 1791056 1863276 1870199 1930528 1951512 2087664 2375096 2470866 2484368 2511372 2602016 2643252 2686584 2895792 2943264 3294488 3348496 3524336 3562644 3582112 3726552 3740398 3903024 4175328 4750192 4813463 4941732 4968736 5022744 5286504 5373168 5610597 5791584 6588976 6696992 6828401 7048672 7125288 7453104 7480796 7806048 9471653 9500384 9626926 9883464 10045488 10573008 10746336 11221194 12766141 13177952 13656802 14250576 14440389 14906208 14961592 18943306 19253852 19766928 20090976 20485203 21146016 22442388 25532282 27313604 28414959 28501152 28880778 29923184 37886612 38298423 38507704 39533856 40970406 44884776 51064564 54627208 56829918 57761556 59846368 75773224 76596846 77015408 81940812 89769552 102129128 109254416 113659836 115523112 151546448 153193692 154030816 163881624 179539104 204258256 218508832 227319672 231046224 293621243 303092896 306387384 327763248 408516512 454639344 462092448 587242486 612774768 655526496 880863729 909278688 1174484972 1225549536 1761727458 2348969944 3523454916 4697939888 7046909832 9395879776 14093819664 28187639328
• Sum of all divisors σ(n): 83418660864
• Sum of proper divisors (its aliquot sum) s(n): 55231021536
• 28187639328 is an abundant number, because the sum of its proper divisors (55231021536) is greater than itself. Its abundance is 27043382208

Bases of 28187639328

• Binary: 11010010000000111010011111000100000₂
• Hexadecimal: 0x6901D3E20
• Base-36: CY66XPC

Squares and roots of 28187639328

• 28187639328 squared (28187639328²) is 794543010885412291584
• 28187639328 cubed (28187639328³) is 22396291821421179611747761815552
• The square root of 28187639328 is 167891.7488383511
• The cube root of 28187639328 is 3043.3570129271

Scales and comparisons

• 28,187,639,328 seconds is equal to 896 years, 14 weeks, 3 days, 19 hours, 48 minutes, 48 seconds.
• To count from 1 to 28,187,639,328 would take you about one thousand, seven hundred ninety-two 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 28187639328 cubic inches would be around 253.6 feet tall.

Recreational maths with 28187639328

• 28187639328 backwards is 82393678182
• The number of decimal digits it has is: 11
• The sum of 28187639328's digits is 57
• More coming soon!