28488372640

Names of 28488372640

• Cardinal: 28488372640 can be written as Twenty-eight billion, four hundred eighty-eight million, three hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.848837264 × 10¹⁰

Factors of 28488372640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 647

Divisors of 28488372640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 49 52 56 65 70 73 80 91 98 104 112 130 140 146 160 182 196 208 224 245 260 280 292 343 364 365 392 416 455 490 511 520 547 560 584 637 686 728 730 784 910 949 980 1022 1040 1094 1120 1168 1274 1372 1456 1460 1568 1715 1820 1898 1960 2044 2080 2188 2336 2548 2555 2735 2744 2912 2920 3185 3430 3577 3640 3796 3829 3920 4088 4376 4459 4745 5096 5110 5470 5488 5840 6370 6643 6860 7111 7154 7280 7592 7658 7840 8176 8752 8918 9490 10192 10220 10940 10976 11680 12740 13286 13720 14222 14308 14560 15184 15316 16352 17504 17836 17885 18980 19145 20384 20440 21880 22295 25039 25480 26572 26803 27440 28444 28616 30368 30632 33215 35555 35672 35770 37960 38290 39931 40880 43760 44590 46501 49777 50078 50960 53144 53606 54880 56888 57232 61264 66430 71110 71344 71540 75920 76580 79862 81760 87520 89180 93002 99554 100156 101920 106288 107212 113776 114464 122528 125195 132860 134015 142220 142688 143080 151840 153160 159724 178360 186004 187621 199108 199655 200312 212576 214424 227552 232505 248885 250390 265720 268030 279517 284440 286160 306320 319448 325507 348439 356720 372008 375242 398216 399310 400624 428848 465010 497770 500780 519103 531440 536060 559034 568880 572320 612640 638896 651014 696878 713440 744016 750484 796432 798620 801248 857696 930020 938105 995540 1001560 1038206 1062880 1072120 1118068 1137760 1277792 1302028 1393756 1397585 1488032 1500968 1592864 1597240 1627535 1742195 1860040 1876210 1956619 1991080 2003120 2076412 2144240 2236136 2439073 2595515 2604056 2787512 2795170 3001936 3194480 3255070 3484390 3633721 3720080 3752420 3913238 3982160 4006240 4152824 4288480 4472272 4878146 5191030 5208112 5575024 5590340 6003872 6388960 6510140 6968780 7267442 7440160 7504840 7826476 7964320 8305648 8944544 9756292 9783095 10382060 10416224 11150048 11180680 12195365 13020280 13696333 13937560 14534884 15009680 15652952 16611296 18168605 19512584 19566190 20764120 22361360 24390730 25436047 26040560 27392666 27875120 29069768 30019360 31305904 36337210 39025168 39132380 41528240 44722720 48781460 50872094 52081120 54785332 55750240 58139536 62611808 68481665 72674420 78050336 78264760 83056480 97562920 101744188 109570664 116279072 127180235 136963330 145348840 156529520 178052329 195125840 203488376 219141328 254360470 273926660 290697680 313059040 356104658 390251680 406976752 438282656 508720940 547853320 581395360 712209316 813953504 890261645 1017441880 1095706640 1424418632 1780523290 2034883760 2191413280 2848837264 3561046580 4069767520 5697674528 7122093160 14244186320 28488372640
• Sum of all divisors σ(n): 85840473600
• Sum of proper divisors (its aliquot sum) s(n): 57352100960
• 28488372640 is an abundant number, because the sum of its proper divisors (57352100960) is greater than itself. Its abundance is 28863728320

Bases of 28488372640

• Binary: 11010100010000010100001000110100000₂
• Hexadecimal: 0x6A20A11A0
• Base-36: D358P0G

Squares and roots of 28488372640

• 28488372640 squared (28488372640²) is 811587375675500569600
• 28488372640 cubed (28488372640³) is 23120803588163331945297055744000
• The square root of 28488372640 is 168784.9893799799
• The cube root of 28488372640 is 3054.1419187031

Scales and comparisons

• 28,488,372,640 seconds is equal to 905 years, 43 weeks, 5 days, 12 hours, 50 minutes, 40 seconds.
• To count from 1 to 28,488,372,640 would take you about one thousand, eight hundred eleven 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 28488372640 cubic inches would be around 254.5 feet tall.

Recreational maths with 28488372640

• 28488372640 backwards is 04627388482
• 28488372640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28488372640's digits is 52
• More coming soon!