21147130368

Names of 21147130368

• Cardinal: 21147130368 can be written as Twenty-one billion, one hundred forty-seven million, one hundred thirty thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1147130368 × 10¹⁰

Factors of 21147130368

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 138

Divisors of 21147130368

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 29 32 36 37 39 42 47 48 52 56 58 63 64 72 74 78 84 87 91 94 96 104 111 112 116 117 126 128 141 144 148 156 168 174 182 188 192 203 208 222 224 232 234 252 256 259 261 273 282 288 296 312 329 333 336 348 364 376 377 384 406 416 423 444 448 464 468 481 504 512 518 522 546 564 576 592 609 611 624 658 666 672 696 728 752 754 768 777 812 819 832 846 888 896 928 936 962 987 1008 1036 1044 1073 1092 1128 1131 1152 1184 1218 1222 1248 1316 1332 1344 1363 1392 1443 1456 1504 1508 1536 1554 1624 1638 1664 1692 1739 1776 1792 1827 1833 1856 1872 1924 1974 2016 2072 2088 2146 2184 2256 2262 2304 2331 2368 2436 2444 2496 2632 2639 2664 2688 2726 2784 2886 2912 2961 3008 3016 3108 3219 3248 3276 3328 3367 3384 3393 3478 3552 3584 3654 3666 3712 3744 3848 3948 4032 4089 4144 4176 4277 4292 4329 4368 4512 4524 4608 4662 4736 4872 4888 4992 5217 5264 5278 5328 5376 5452 5499 5568 5772 5824 5922 6016 6032 6216 6438 6496 6552 6656 6734 6768 6786 6956 7104 7308 7332 7424 7488 7511 7696 7896 7917 8064 8178 8288 8352 8554 8584 8658 8736 9024 9048 9324 9472 9541 9657 9744 9776 9984 10101 10434 10528 10556 10656 10752 10904 10998 11136 11544 11648 11844 12032 12064 12173 12267 12432 12831 12876 12992 13104 13468 13536 13572 13912 13949 14208 14616 14664 14848 14976 15022 15392 15651 15792 15834 16128 16356 16576 16704 17108 17168 17316 17472 17719 18048 18096 18648 18944 19082 19314 19488 19552 19968 20202 20868 21056 21112 21312 21808 21996 22272 22533 22607 23088 23296 23688 23751 24064 24128 24346 24534 24864 25662 25752 25984 26208 26936 27072 27144 27824 27898 28416 28623 29232 29328 29952 30044 30303 30784 31302 31584 31668 32256 32712 33152 33408 34216 34336 34632 34944 35438 36096 36192 36519 37296 38164 38493 38628 38976 39104 40404 41736 41847 42112 42224 42624 43616 43992 44544 45066 45214 46176 46592 47376 47502 48256 48692 49068 49728 50431 51324 51504 51968 52416 53157 53872 54144 54288 55648 55796 56832 57246 58464 58656 59904 60088 60606 61568 62604 63168 63336 65424 66304 66816 67599 67821 68432 68672 69264 69888 70876 72192 72384 73038 74592 76328 76986 77256 77952 78208 80808 83472 83694 84224 84448 85248 85869 87232 87984 90132 90428 92352 94752 95004 96512 97384 97643 98136 99456 100862 102648 103008 103936 104832 106314 107744 108288 108576 109557 111296 111592 114492 116928 117312 120176 121212 123136 124033 125208 125541 126336 126672 130848 132608 133632 135198 135642 136864 137344 138528 139776 141752 144768 146076 149184 151293 152656 153972 154512 155904 156416 158249 159471 161616 166944 167388 168448 168896 170496 171738 174464 175968 180264 180856 184704 189504 190008 193024 194768 195286 196272 198912 201724 203463 205296 206016 209664 212628 215488 216576 217152 219114 222592 223184 228984 233856 234624 240352 242424 246272 248066 250416 251082 252672 253344 261696 270396 271284 273728 274688 277056 283504 289536 292152 292929 298368 302586 305312 307944 309024 311808 312832 316498 318942 323232 333888 334776 337792 343476 348928 351936 353017 360528 361712 369408 372099 379008 380016 389536 390572 392544 397824 403448 406926 410592 412032 419328 425256 430976 434304 438228 445184 446368 453879 457968 467712 469248 474747 480704 484848 496132 500832 502164 505344 506688 523392 540792 542568 547456 549376 554112 567008 579072 584304 585858 596736 605172 610624 615888 618048 632996 637884 646464 655603 667776 669552 675584 686952 697856 703872 706034 721056 723424 738816 744198 758016 760032 779072 781144 785088 806896 813852 821184 824064 850512 861952 868608 876456 878787 890368 892736 907758 915936 935424 938496 949494 961408 969696 992264 1001664 1004328 1013376 1046784 1059051 1081584 1085136 1094912 1108224 1116297 1134016 1168608 1171716 1193472 1210344 1221248 1231776 1236096 1265992 1275768 1292928 1311206 1335552 1339104 1351168 1373904 1407744 1412068 1424241 1442112 1446848 1488396 1516032 1520064 1558144 1562288 1570176 1613792 1627704 1642368 1648128 1701024 1723904 1737216 1752912 1757574 1785472 1815516 1831872 1898988 1922816 1939392 1966809 1984528 2003328 2008656 2026752 2093568 2118102 2163168 2170272 2189824 2216448 2232594 2268032 2337216 2343432 2420688 2442496 2463552 2472192 2531984 2551536 2585856 2622412 2671104 2678208 2747808 2815488 2824136 2848482 2884224 2893696 2976792 3040128 3116288 3124576 3140352 3177153 3227584 3255408 3284736 3402048 3505824 3515148 3570944 3631032 3663744 3797976 3845632 3878784 3933618 3969056 4006656 4017312 4053504 4236204 4326336 4340544 4465188 4536064 4589221 4674432 4686864 4841376 4884992 4927104 4944384 5063968 5103072 5171712 5244824 5356416 5495616 5648272 5696964 5768448 5787392 5900427 5953584 6080256 6232576 6249152 6280704 6354306 6455168 6510816 6569472 6804096 7011648 7030296 7141888 7262064 7327488 7595952 7757568 7867236 7938112 8013312 8034624 8472408 8652672 8681088 8930376 9072128 9178442 9348864 9373728 9682752 9854208 10127936 10206144 10489648 10712832 10991232 11296544 11393928 11536896 11574784 11800854 11907168 12160512 12498304 12708612 12910336 13021632 13608192 13767663 14023296 14060592 14524128 14654976 15191904 15515136 15734472 15876224 16069248 16944816 17305344 17362176 17860752 18356884 18697728 18747456 19365504 19708416 20255872 20412288 20979296 21425664 21982464 22593088 22787856 23601708 23814336 24996608 25417224 25820672 26043264 27216384 27535326 28046592 28121184 29048256 30383808 31468944 31752448 32138496 33889632 34610688 34724352 35721504 36713768 37494912 38731008 40511744 40824576 41302989 41958592 43964928 45186176 45575712 47203416 47628672 49993216 50834448 52086528 55070652 56093184 56242368 58096512 60767616 62937888 63504896 64276992 67779264 71443008 73427536 74989824 77462016 81023488 81649152 82605978 83917184 90372352 91151424 94406832 95257344 101668896 104173056 110141304 112484736 116193024 121535232 125875776 135558528 142886016 146855072 149979648 165211956 167834368 180744704 182302848 188813664 190514688 203337792 220282608 224969472 232386048 243070464 251751552 271117056 285772032 293710144 330423912 335668736 364605696 377627328 406675584 440565216 449938944 503503104 542234112 571544064 587420288 660847824 729211392 755254656 813351168 881130432 1007006208 1174840576 1321695648 1510509312 1626702336 1762260864 2349681152 2643391296 3021018624 3524521728 5286782592 7049043456 10573565184 21147130368
• Sum of all divisors σ(n): 81504783360
• Sum of proper divisors (its aliquot sum) s(n): 60357652992
• 21147130368 is an abundant number, because the sum of its proper divisors (60357652992) is greater than itself. Its abundance is 39210522624

Bases of 21147130368

• Binary: 10011101100011101111001101000000000₂
• Hexadecimal: 0x4EC779A00
• Base-36: 9PQGE80

Squares and roots of 21147130368

• 21147130368 squared (21147130368²) is 447201122801187815424
• 21147130368 cubed (21147130368³) is 9457020444592696078024449196032
• The square root of 21147130368 is 145420.5293897667
• The cube root of 21147130368 is 2765.3523860935

Scales and comparisons

• 21,147,130,368 seconds is equal to 672 years, 21 weeks, 3 days, 10 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,147,130,368 would take you about one thousand, three hundred forty-four 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 21147130368 cubic inches would be around 230.4 feet tall.

Recreational maths with 21147130368

• 21147130368 backwards is 86303174112
• 21147130368 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21147130368's digits is 36
• More coming soon!