21789654016

Names of 21789654016

• Cardinal: 21789654016 can be written as Twenty-one billion, seven hundred eighty-nine million, six hundred fifty-four thousand and sixteen.

Scientific notation

• Scientific notation: 2.1789654016 × 10¹⁰

Factors of 21789654016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 176

Divisors of 21789654016

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 4 8 13 16 26 32 37 41 52 64 74 82 83 104 128 148 164 166 169 208 256 296 328 332 338 416 481 512 533 592 656 664 676 832 962 1024 1066 1079 1184 1312 1328 1352 1517 1664 1924 2132 2158 2368 2624 2656 2704 3034 3071 3328 3403 3848 4264 4316 4736 5248 5312 5408 6068 6142 6253 6656 6806 6929 7696 8528 8632 9472 10496 10624 10816 12136 12284 12506 13312 13612 13858 14027 15392 17056 17264 18944 19721 20992 21248 21632 24272 24568 25012 27224 27716 28054 30784 34112 34528 37888 39442 39923 41984 42496 43264 44239 48544 49136 50024 54448 55432 56108 61568 68224 69056 78884 79846 84992 86528 88478 97088 98272 100048 108896 110864 112216 123136 125911 136448 138112 157768 159692 173056 176956 194176 196544 200096 217792 221728 224432 246272 251822 256373 272896 276224 315536 319384 353912 388352 393088 400192 435584 443456 448864 492544 503644 512746 518999 545792 552448 575107 631072 638768 707824 776704 786176 800384 871168 886912 897728 1007288 1025492 1037998 1104896 1150214 1262144 1277536 1415648 1553408 1572352 1600768 1636843 1742336 1773824 1795456 2014576 2050984 2075996 2300428 2524288 2555072 2831296 3144704 3201536 3273686 3484672 3547648 3590912 4029152 4101968 4151992 4600856 5048576 5110144 5662592 6403072 6547372 7095296 7181824 8058304 8203936 8303984 9201712 10097152 10220288 11325184 13094744 14363648 16116608 16407872 16607968 18403424 20194304 20440576 21278959 22650368 26189488 32233216 32815744 33215936 36806848 40881152 42557918 45300736 52378976 64466432 65631488 66431872 73613696 85115836 104757952 128932864 131262976 132863744 147227392 170231672 209515904 262525952 265727488 294454784 340463344 419031808 531454976 588909568 680926688 838063616 1361853376 1676127232 2723706752 5447413504 10894827008 21789654016
• Sum of all divisors σ(n): 50220508464
• Sum of proper divisors (its aliquot sum) s(n): 28430854448
• 21789654016 is an abundant number, because the sum of its proper divisors (28430854448) is greater than itself. Its abundance is 6641200432

Bases of 21789654016

• Binary: 10100010010110000111011110000000000₂
• Hexadecimal: 0x512C3BC00
• Base-36: A0CZWN4

Squares and roots of 21789654016

• 21789654016 squared (21789654016²) is 474789022136984928256
• 21789654016 cubed (21789654016³) is 10345488522959866544104822276096
• The square root of 21789654016 is 147613.1905217145
• The cube root of 21789654016 is 2793.0804487123

Scales and comparisons

• 21,789,654,016 seconds is equal to 692 years, 43 weeks, 6 days, 1 hour, 40 minutes, 16 seconds.
• To count from 1 to 21,789,654,016 would take you about one thousand, three hundred eighty-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 21789654016 cubic inches would be around 232.8 feet tall.

Recreational maths with 21789654016

• 21789654016 backwards is 61045698712
• The number of decimal digits it has is: 11
• The sum of 21789654016's digits is 49
• More coming soon!