18400708872

Names of 18400708872

• Cardinal: 18400708872 can be written as Eighteen billion, four hundred million, seven hundred eight thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8400708872 × 10¹⁰

Factors of 18400708872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 25363

Divisors of 18400708872

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 27 28 36 37 39 42 52 54 56 63 72 74 78 84 91 104 108 111 117 126 148 156 168 182 189 216 222 234 252 259 273 296 312 333 351 364 378 444 468 481 504 518 546 666 702 728 756 777 819 888 936 962 999 1036 1092 1332 1404 1443 1512 1554 1638 1924 1998 2072 2184 2331 2457 2664 2808 2886 3108 3276 3367 3848 3996 4329 4662 4914 5772 6216 6552 6734 6993 7992 8658 9324 9828 10101 11544 12987 13468 13986 17316 18648 19656 20202 25301 25974 26936 27972 30303 34632 40404 50602 51948 55944 60606 75903 80808 90909 101204 103896 121212 151806 177107 181818 202408 227709 242424 303612 328913 354214 363636 455418 531321 607224 657826 683127 708428 727272 910836 936137 986739 1062642 1315652 1366254 1416856 1593963 1821672 1872274 1973478 2125284 2302391 2631304 2732508 2808411 2960217 3187926 3744548 3946956 4250568 4604782 4781889 5465016 5616822 5920434 6375852 6552959 6907173 7489096 7893912 8425233 8880651 9209564 9563778 11233644 11840868 12169781 12751704 13105918 13814346 16850466 17761302 18419128 19127556 19658877 20721519 22467288 23681736 24339562 25275699 26211836 27628692 33700932 35522604 36509343 38255112 39317754 41443038 48679124 50551398 52423672 55257384 58976631 62164557 67401864 71045208 73018686 78635508 82886076 85188467 97358248 101102796 109528029 117953262 124329114 146037372 157271016 165772152 170376934 176929893 202205592 219056058 235906524 248658228 255565401 292074744 328584087 340753868 353859786 438112116 471813048 497316456 511130802 657168174 681507736 707719572 766696203 876224232 1022261604 1314336348 1415439144 1533392406 2044523208 2300088609 2628672696 3066784812 4600177218 6133569624 9200354436 18400708872
• Sum of all divisors σ(n): 64611187200
• Sum of proper divisors (its aliquot sum) s(n): 46210478328
• 18400708872 is an abundant number, because the sum of its proper divisors (46210478328) is greater than itself. Its abundance is 27809769456

Bases of 18400708872

• Binary: 10001001000110001001000100100001000₂
• Hexadecimal: 0x448C48908
• Base-36: 8GBB1U0

Squares and roots of 18400708872

• 18400708872 squared (18400708872²) is 338586086992099512384
• 18400708872 cubed (18400708872³) is 6230224014851289291431142670848
• The square root of 18400708872 is 135649.2125741981
• The cube root of 18400708872 is 2640.0461458877

Scales and comparisons

• 18,400,708,872 seconds is equal to 585 years, 4 weeks, 3 days, 4 hours, 1 minute, 12 seconds.
• To count from 1 to 18,400,708,872 would take you about one thousand, one hundred seventy 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 18400708872 cubic inches would be around 220 feet tall.

Recreational maths with 18400708872

• 18400708872 backwards is 27880700481
• The number of decimal digits it has is: 11
• The sum of 18400708872's digits is 45
• More coming soon!