21216411648

Names of 21216411648

• Cardinal: 21216411648 can be written as Twenty-one billion, two hundred sixteen million, four hundred eleven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1216411648 × 10¹⁰

Factors of 21216411648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 78

Divisors of 21216411648

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 73 81 96 108 128 144 146 162 192 216 219 243 256 288 292 324 384 432 438 486 512 576 584 648 657 768 864 876 972 1024 1152 1168 1296 1314 1536 1728 1752 1944 1971 2048 2304 2336 2592 2628 3072 3456 3504 3888 3942 4096 4608 4672 5184 5256 5329 5913 6144 6912 7008 7776 7884 8192 9216 9344 10368 10512 10658 11826 12288 13824 14016 15552 15768 15987 16384 17739 18432 18688 20736 21024 21316 23652 24576 27648 28032 31104 31536 31974 35478 36864 37376 41472 42048 42632 47304 47961 49152 55296 56064 62208 63072 63948 70956 73728 74752 82944 84096 85264 94608 95922 110592 112128 124416 126144 127896 141912 143883 147456 149504 165888 168192 170528 189216 191844 221184 224256 248832 252288 255792 283824 287766 299008 331776 336384 341056 378432 383688 431649 442368 448512 497664 504576 511584 567648 575532 598016 663552 672768 682112 756864 767376 863298 897024 995328 1009152 1023168 1135296 1151064 1196032 1294947 1327104 1345536 1364224 1513728 1534752 1726596 1794048 1990656 2018304 2046336 2270592 2302128 2589894 2691072 2728448 3027456 3069504 3453192 3588096 3981312 4036608 4092672 4541184 4604256 5179788 5382144 5456896 6054912 6139008 6906384 8073216 8185344 9082368 9208512 10359576 10764288 10913792 12109824 12278016 13812768 16146432 16370688 18164736 18417024 20719152 21827584 24219648 24556032 27625536 32292864 32741376 36329472 36834048 41438304 43655168 48439296 49112064 55251072 65482752 72658944 73668096 82876608 87310336 96878592 98224128 110502144 130965504 145317888 147336192 165753216 196448256 221004288 261931008 290635776 294672384 331506432 392896512 442008576 589344768 663012864 785793024 884017152 1178689536 1326025728 1768034304 2357379072 2652051456 3536068608 5304102912 7072137216 10608205824 21216411648
• Sum of all divisors σ(n): 64442596764
• Sum of proper divisors (its aliquot sum) s(n): 43226185116
• 21216411648 is an abundant number, because the sum of its proper divisors (43226185116) is greater than itself. Its abundance is 22009773468

Bases of 21216411648

• Binary: 10011110000100110001100000000000000₂
• Hexadecimal: 0x4F098C000
• Base-36: 9QVPC00

Squares and roots of 21216411648

• 21216411648 squared (21216411648²) is 450136123217390075904
• 21216411648 cubed (21216411648³) is 9550273287814998042569229729792
• The square root of 21216411648 is 145658.5447133123
• The cube root of 21216411648 is 2768.3690020051

Scales and comparisons

• 21,216,411,648 seconds is equal to 674 years, 32 weeks, 7 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,216,411,648 would take you about one thousand, three hundred forty-nine 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 21216411648 cubic inches would be around 230.7 feet tall.

Recreational maths with 21216411648

• 21216411648 backwards is 84611461212
• 21216411648 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21216411648's digits is 36
• More coming soon!