21318853556

Names of 21318853556

• Cardinal: 21318853556 can be written as Twenty-one billion, three hundred eighteen million, eight hundred fifty-three thousand, five hundred fifty-six.

Scientific notation

• Scientific notation: 2.1318853556 × 10¹⁰

Factors of 21318853556

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 95

Divisors of 21318853556

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 7 11 13 14 19 22 26 28 38 43 44 49 52 76 77 86 91 98 133 143 154 172 182 196 209 247 266 286 301 308 343 361 364 418 473 494 532 539 559 572 602 637 686 722 817 836 931 946 988 1001 1078 1118 1204 1274 1372 1444 1463 1634 1729 1862 1892 2002 2107 2156 2236 2401 2527 2548 2717 2926 3268 3311 3458 3724 3773 3913 3971 4004 4214 4459 4693 4802 5054 5434 5719 5852 6149 6517 6622 6916 7007 7546 7826 7942 8428 8918 8987 9386 9604 10108 10241 10621 10868 11438 12103 12298 13034 13244 14014 14749 15092 15523 15652 15884 17689 17836 17974 18772 19019 20482 21242 22876 23177 24206 24596 26068 26411 27391 27797 28028 29498 31046 31213 32851 35378 35948 38038 40033 40964 42484 43043 45619 46354 48412 49049 51623 52822 54782 55594 58996 62092 62426 62909 65702 70756 71687 74347 76076 80066 84721 86086 91238 92708 98098 103243 103246 105644 108661 109564 111188 116831 123823 124852 125818 131404 133133 143374 148694 160132 162239 169442 170753 172172 182476 191737 194579 196196 201799 206486 206492 217322 229957 233662 247646 251636 266266 280231 286748 297388 301301 324478 338884 341506 343343 361361 383474 389158 403598 412972 434644 440363 459914 467324 495292 501809 520429 532532 560462 593047 602602 648956 683012 686686 722722 760627 766948 778316 807196 817817 866761 880726 919828 931931 1003618 1040858 1120924 1135673 1186094 1195271 1205204 1342159 1362053 1373372 1412593 1445444 1521254 1609699 1635634 1733522 1761452 1863862 1961617 2007236 2081716 2109107 2219789 2271346 2372188 2390542 2529527 2684318 2724106 2825186 3042508 3082541 3219398 3271268 3467044 3643003 3727724 3923234 4218214 4439578 4542692 4781084 5059054 5324389 5368636 5448212 5650372 5724719 6165082 6438796 6523517 7286006 7846468 8366897 8436428 8879156 9534371 9888151 10118108 10648778 11267893 11449438 12330164 13047034 14572012 14763749 15538523 16733794 17706689 19068742 19776302 21297556 21577787 22535786 22898876 25501021 26094068 29527498 31077046 33467588 35413378 37270723 38137484 39552604 40073033 43155574 45071572 51002042 58568279 59054996 62154092 69217057 70826756 74541446 80146066 86311148 102004084 108769661 117136558 123946823 138434114 149082892 160292132 217539322 234273116 247893646 276868228 280511231 409977953 435078644 484519399 495787292 561022462 761387627 819955906 969038798 1122044924 1522775254 1639911812 1938077596 3045550508 5329713389 10659426778 21318853556
• Sum of all divisors σ(n): 55220213664
• Sum of proper divisors (its aliquot sum) s(n): 33901360108
• 21318853556 is an abundant number, because the sum of its proper divisors (33901360108) is greater than itself. Its abundance is 12582506552

Bases of 21318853556

• Binary: 10011110110101100111110001110110100₂
• Hexadecimal: 0x4F6B3E3B4
• Base-36: 9SKP0OK

Squares and roots of 21318853556

• 21318853556 squared (21318853556²) is 454493516942173845136
• 21318853556 cubed (21318853556³) is 9689280729841609124747806903616
• The square root of 21318853556 is 146009.7721250191
• The cube root of 21318853556 is 2772.8174730793

Scales and comparisons

• 21,318,853,556 seconds is equal to 677 years, 45 weeks, 2 days, 23 hours, 45 minutes, 56 seconds.
• To count from 1 to 21,318,853,556 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 21318853556 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318853556

• 21318853556 backwards is 65535881312
• The number of decimal digits it has is: 11
• The sum of 21318853556's digits is 47
• More coming soon!