21289319424

Names of 21289319424

• Cardinal: 21289319424 can be written as Twenty-one billion, two hundred eighty-nine million, three hundred nineteen thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1289319424 × 10¹⁰

Factors of 21289319424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 103

Divisors of 21289319424

• Number of divisors d(n): 462
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 79 81 96 108 114 128 144 152 158 162 171 192 216 228 237 243 256 288 304 316 324 342 361 384 432 456 474 486 512 513 576 608 632 648 684 711 722 729 768 864 912 948 972 1024 1026 1083 1152 1216 1264 1296 1368 1422 1444 1458 1501 1536 1539 1728 1824 1896 1944 2052 2133 2166 2304 2432 2528 2592 2736 2844 2888 2916 3002 3072 3078 3249 3456 3648 3792 3888 4104 4266 4332 4503 4608 4617 4864 5056 5184 5472 5688 5776 5832 6004 6156 6399 6498 6912 7296 7584 7776 8208 8532 8664 9006 9216 9234 9728 9747 10112 10368 10944 11376 11552 11664 12008 12312 12798 12996 13509 13824 13851 14592 15168 15552 16416 17064 17328 18012 18468 19197 19456 19494 20224 20736 21888 22752 23104 23328 24016 24624 25596 25992 27018 27648 27702 28519 29184 29241 30336 31104 32832 34128 34656 36024 36936 38394 38988 40448 40527 41472 43776 45504 46208 46656 48032 49248 51192 51984 54036 55404 57038 57591 58368 58482 60672 62208 65664 68256 69312 72048 73872 76788 77976 80896 81054 82944 85557 87552 87723 91008 92416 93312 96064 98496 102384 103968 108072 110808 114076 115182 116964 121344 121581 124416 131328 136512 138624 144096 147744 153576 155952 162108 171114 175104 175446 182016 184832 186624 192128 196992 204768 207936 216144 221616 228152 230364 233928 242688 243162 248832 256671 262656 263169 273024 277248 288192 295488 307152 311904 324216 342228 350892 364032 364743 369664 373248 384256 393984 409536 415872 432288 443232 456304 460728 467856 486324 513342 525312 526338 546048 554496 576384 590976 614304 623808 648432 684456 701784 728064 729486 746496 768512 770013 787968 819072 831744 864576 886464 912608 921456 935712 972648 1026684 1052676 1092096 1094229 1108992 1152768 1181952 1228608 1247616 1296864 1368912 1403568 1458972 1537024 1540026 1575936 1638144 1663488 1729152 1772928 1825216 1842912 1871424 1945296 2053368 2105352 2184192 2188458 2305536 2310039 2363904 2457216 2495232 2593728 2737824 2807136 2917944 3080052 3276288 3326976 3458304 3545856 3650432 3685824 3742848 3890592 4106736 4210704 4376916 4611072 4620078 4727808 4914432 4990464 5187456 5475648 5614272 5835888 6160104 6552576 6916608 6930117 7091712 7300864 7371648 7485696 7781184 8213472 8421408 8753832 9240156 9828864 9980928 10374912 10951296 11228544 11671776 12320208 13833216 13860234 14183424 14601728 14743296 14971392 15562368 16426944 16842816 17507664 18480312 19657728 20749824 20790351 21902592 22457088 23343552 24640416 27720468 29203456 29486592 29942784 31124736 32853888 33685632 35015328 36960624 41499648 41580702 43805184 44914176 46687104 49280832 55440936 58973184 62249472 65707776 67371264 70030656 73921248 83161404 87610368 89828352 93374208 98561664 110881872 124498944 131415552 134742528 140061312 147842496 166322808 186748416 197123328 221763744 262831104 269485056 280122624 295684992 332645616 373496832 394246656 443527488 560245248 591369984 665291232 788493312 887054976 1120490496 1182739968 1330582464 1774109952 2365479936 2661164928 3548219904 5322329856 7096439808 10644659712 21289319424
• Sum of all divisors σ(n): 68195068080
• Sum of proper divisors (its aliquot sum) s(n): 46905748656
• 21289319424 is an abundant number, because the sum of its proper divisors (46905748656) is greater than itself. Its abundance is 25616429232

Bases of 21289319424

• Binary: 10011110100111100010011110000000000₂
• Hexadecimal: 0x4F4F13C00
• Base-36: 9S34000

Squares and roots of 21289319424

• 21289319424 squared (21289319424²) is 453235121537103691776
• 21289319424 cubed (21289319424³) is 9649067276578862362028905857024
• The square root of 21289319424 is 145908.5995546527
• The cube root of 21289319424 is 2771.5364379155

Scales and comparisons

• 21,289,319,424 seconds is equal to 676 years, 48 weeks, 4 days, 3 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,289,319,424 would take you about one thousand, three hundred fifty-three 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 21289319424 cubic inches would be around 231 feet tall.

Recreational maths with 21289319424

• 21289319424 backwards is 42491398212
• The number of decimal digits it has is: 11
• The sum of 21289319424's digits is 45
• More coming soon!