21320672256

Names of 21320672256

• Cardinal: 21320672256 can be written as Twenty-one billion, three hundred twenty million, six hundred seventy-two thousand, two hundred fifty-six.

Scientific notation

• Scientific notation: 2.1320672256 × 10¹⁰

Factors of 21320672256

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 18

Divisors of 21320672256

• Number of divisors d(n): 385
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 128 144 156 162 169 192 208 216 234 243 256 288 312 324 338 351 384 416 432 468 486 507 512 576 624 648 676 702 729 768 832 864 936 972 1014 1024 1053 1152 1248 1296 1352 1404 1458 1521 1536 1664 1728 1872 1944 2028 2106 2197 2304 2496 2592 2704 2808 2916 3042 3072 3159 3328 3456 3744 3888 4056 4212 4394 4563 4608 4992 5184 5408 5616 5832 6084 6318 6591 6656 6912 7488 7776 8112 8424 8788 9126 9216 9477 9984 10368 10816 11232 11664 12168 12636 13182 13312 13689 13824 14976 15552 16224 16848 17576 18252 18954 19773 19968 20736 21632 22464 23328 24336 25272 26364 27378 27648 28561 29952 31104 32448 33696 35152 36504 37908 39546 39936 41067 41472 43264 44928 46656 48672 50544 52728 54756 57122 59319 59904 62208 64896 67392 70304 73008 75816 79092 82134 82944 85683 86528 89856 93312 97344 101088 105456 109512 114244 118638 119808 123201 124416 129792 134784 140608 146016 151632 158184 164268 171366 173056 177957 179712 186624 194688 202176 210912 219024 228488 237276 246402 248832 257049 259584 269568 281216 292032 303264 316368 328536 342732 355914 359424 373248 389376 404352 421824 438048 456976 474552 492804 514098 519168 533871 539136 562432 584064 606528 632736 657072 685464 711828 746496 771147 778752 808704 843648 876096 913952 949104 985608 1028196 1067742 1078272 1124864 1168128 1213056 1265472 1314144 1370928 1423656 1542294 1557504 1601613 1617408 1687296 1752192 1827904 1898208 1971216 2056392 2135484 2249728 2313441 2336256 2426112 2530944 2628288 2741856 2847312 3084588 3203226 3234816 3374592 3504384 3655808 3796416 3942432 4112784 4270968 4626882 4672512 4852224 5061888 5256576 5483712 5694624 6169176 6406452 6749184 6940323 7008768 7311616 7592832 7884864 8225568 8541936 9253764 9704448 10123776 10513152 10967424 11389248 12338352 12812904 13880646 14017536 14623232 15185664 15769728 16451136 17083872 18507528 20247552 20820969 21026304 21934848 22778496 24676704 25625808 27761292 29246464 30371328 31539456 32902272 34167744 37015056 41641938 42052608 43869696 45556992 49353408 51251616 55522584 60742656 63078912 65804544 68335488 74030112 83283876 87739392 91113984 98706816 102503232 111045168 126157824 131609088 136670976 148060224 166567752 182227968 197413632 205006464 222090336 263218176 273341952 296120448 333135504 394827264 410012928 444180672 546683904 592240896 666271008 789654528 820025856 888361344 1184481792 1332542016 1640051712 1776722688 2368963584 2665084032 3553445376 5330168064 7106890752 10660336128 21320672256
• Sum of all divisors σ(n): 69226496111
• Sum of proper divisors (its aliquot sum) s(n): 47905823855
• 21320672256 is an abundant number, because the sum of its proper divisors (47905823855) is greater than itself. Its abundance is 26585151599

Bases of 21320672256

• Binary: 10011110110110011111010010000000000₂
• Hexadecimal: 0x4F6CFA400
• Base-36: 9SLS000

Squares and roots of 21320672256

• 21320672256 squared (21320672256²) is 454571065447768129536
• 21320672256 cubed (21320672256³) is 9691760703472590176519209353216
• 21320672256 is a perfect square number. Its square root is 146016
• The cube root of 21320672256 is 2772.8963200293

Scales and comparisons

• 21,320,672,256 seconds is equal to 677 years, 48 weeks, 3 days, 57 minutes, 36 seconds.
• To count from 1 to 21,320,672,256 would take you about one thousand, three hundred fifty-five 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 21320672256 cubic inches would be around 231.1 feet tall.

Recreational maths with 21320672256

• 21320672256 backwards is 65227602312
• 21320672256 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21320672256's digits is 36
• More coming soon!