18205212672

Names of 18205212672

• Cardinal: 18205212672 can be written as Eighteen billion, two hundred five million, two hundred twelve thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8205212672 × 10¹⁰

Factors of 18205212672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 24

Divisors of 18205212672

• Number of divisors d(n): 320
• 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 81 96 108 114 128 144 152 162 171 192 216 228 256 288 304 324 342 361 384 432 456 512 513 576 608 648 684 722 768 864 912 1024 1026 1083 1152 1216 1296 1368 1444 1536 1539 1728 1824 2048 2052 2166 2304 2432 2592 2736 2888 3072 3078 3249 3456 3648 4096 4104 4332 4608 4864 5184 5472 5776 6144 6156 6498 6859 6912 7296 8192 8208 8664 9216 9728 9747 10368 10944 11552 12288 12312 12996 13718 13824 14592 16384 16416 17328 18432 19456 19494 20577 20736 21888 23104 24576 24624 25992 27436 27648 29184 29241 32768 32832 34656 36864 38912 38988 41154 41472 43776 46208 49152 49248 51984 54872 55296 58368 58482 61731 65664 69312 73728 77824 77976 82308 82944 87552 92416 98304 98496 103968 109744 110592 116736 116964 123462 131328 138624 147456 155648 155952 164616 165888 175104 184832 185193 196992 207936 219488 221184 233472 233928 246924 262656 277248 294912 311296 311904 329232 331776 350208 369664 370386 393984 415872 438976 442368 466944 467856 493848 525312 554496 555579 622592 623808 658464 663552 700416 739328 740772 787968 831744 877952 884736 933888 935712 987696 1050624 1108992 1111158 1247616 1316928 1327104 1400832 1478656 1481544 1575936 1663488 1755904 1867776 1871424 1975392 2101248 2217984 2222316 2495232 2633856 2654208 2801664 2957312 2963088 3151872 3326976 3511808 3742848 3950784 4202496 4435968 4444632 4990464 5267712 5603328 5914624 5926176 6303744 6653952 7023616 7485696 7901568 8404992 8871936 8889264 9980928 10535424 11829248 11852352 12607488 13307904 14047232 14971392 15803136 16809984 17743872 17778528 19961856 21070848 23704704 25214976 26615808 28094464 29942784 31606272 35487744 35557056 39923712 42141696 47409408 50429952 53231616 56188928 59885568 63212544 71114112 79847424 84283392 94818816 106463232 112377856 119771136 126425088 142228224 159694848 168566784 189637632 224755712 239542272 252850176 284456448 319389696 337133568 379275264 479084544 505700352 568912896 674267136 758550528 958169088 1011400704 1137825792 1517101056 2022801408 2275651584 3034202112 4551303168 6068404224 9102606336 18205212672
• Sum of all divisors σ(n): 57411281400
• Sum of proper divisors (its aliquot sum) s(n): 39206068728
• 18205212672 is an abundant number, because the sum of its proper divisors (39206068728) is greater than itself. Its abundance is 21000856056

Bases of 18205212672

• Binary: 10000111101000111011000000000000000₂
• Hexadecimal: 0x43D1D8000
• Base-36: 8D2WW00

Squares and roots of 18205212672

• 18205212672 squared (18205212672²) is 331429768432749379584
• 18205212672 cubed (18205212672³) is 6033749420149914585002774888448
• The square root of 18205212672 is 134926.6936969849
• The cube root of 18205212672 is 2630.6632162407

Scales and comparisons

• 18,205,212,672 seconds is equal to 578 years, 45 weeks, 1 day, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,205,212,672 would take you about one thousand, one hundred fifty-seven 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 18205212672 cubic inches would be around 219.2 feet tall.

Recreational maths with 18205212672

• 18205212672 backwards is 27621250281
• 18205212672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18205212672's digits is 36
• More coming soon!