28438691904

Names of 28438691904

• Cardinal: 28438691904 can be written as Twenty-eight billion, four hundred thirty-eight million, six hundred ninety-one thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.8438691904 × 10¹⁰

Factors of 28438691904

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2805

Divisors of 28438691904

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 43 48 56 61 63 64 72 84 86 96 112 122 126 129 144 168 172 183 192 224 244 252 258 288 301 336 344 366 387 427 448 488 504 516 549 576 602 672 688 732 774 854 903 976 1008 1032 1098 1204 1281 1344 1376 1464 1548 1708 1806 1952 2016 2064 2196 2408 2562 2623 2689 2709 2752 2928 3096 3416 3612 3843 3904 4032 4128 4392 4816 5124 5246 5378 5418 5856 6192 6832 7224 7686 7869 8067 8256 8784 9632 10248 10492 10756 10836 11712 12384 13664 14448 15372 15738 16134 17568 18361 18823 19264 20496 20984 21512 21672 23607 24201 24768 27328 28896 30744 31476 32268 35136 36722 37646 40992 41968 43024 43344 47214 48402 55083 56469 57792 61488 62952 64536 73444 75292 81984 83936 86048 86688 94428 96804 110166 112938 115627 122976 125904 129072 146888 150584 164029 165249 167872 169407 172096 173376 188856 193608 220332 225876 231254 245952 251808 258144 293776 301168 328058 330498 338814 346881 377712 387216 440664 451752 462508 492087 503616 516288 587552 602336 656116 660996 677628 693762 755424 774432 809389 881328 903504 925016 984174 1040643 1148203 1175104 1204672 1312232 1321992 1355256 1387524 1476261 1510848 1548864 1618778 1762656 1807008 1850032 1968348 2081286 2296406 2428167 2624464 2643984 2710512 2775048 2952522 3237556 3444609 3525312 3614016 3700064 3936696 4162572 4592812 4856334 5248928 5287968 5421024 5550096 5905044 6475112 6889218 7053247 7284501 7400128 7873392 8325144 9185624 9712668 10333827 10497856 10575936 10842048 11100192 11810088 12950224 13778436 14106494 14569002 15746784 16650288 18371248 19425336 20667654 21159741 22200384 23620176 25900448 27556872 28212988 29138004 31493568 33300576 36742496 38850672 41335308 42319482 47240352 49372729 51800896 55113744 56425976 58276008 63479223 66601152 73484992 77701344 82670616 84638964 94480704 98745458 110227488 112851952 116552016 126958446 148118187 155402688 165341232 169277928 197490916 220454976 225703904 233104032 253916892 296236374 330682464 338555856 394981832 444354561 451407808 466208064 507833784 592472748 661364928 677111712 789963664 888709122 1015667568 1184945496 1354223424 1579927328 1777418244 2031335136 2369890992 3159854656 3554836488 4062670272 4739781984 7109672976 9479563968 14219345952 28438691904
• Sum of all divisors σ(n): 96924530560
• Sum of proper divisors (its aliquot sum) s(n): 68485838656
• 28438691904 is an abundant number, because the sum of its proper divisors (68485838656) is greater than itself. Its abundance is 40047146752

Bases of 28438691904

• Binary: 11010011111000101000000000001000000₂
• Hexadecimal: 0x69F140040
• Base-36: D2BNV40

Squares and roots of 28438691904

• 28438691904 squared (28438691904²) is 808759197210635145216
• 28438691904 cubed (28438691904³) is 23000053633999629086952123531264
• The square root of 28438691904 is 168637.7534954733
• The cube root of 28438691904 is 3052.3655178837

Scales and comparisons

• 28,438,691,904 seconds is equal to 904 years, 13 weeks, 4 days, 12 hours, 38 minutes, 24 seconds.
• To count from 1 to 28,438,691,904 would take you about one thousand, eight hundred eight 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 28438691904 cubic inches would be around 254.4 feet tall.

Recreational maths with 28438691904

• 28438691904 backwards is 40919683482
• The number of decimal digits it has is: 11
• The sum of 28438691904's digits is 54
• More coming soon!