21998105712

Names of 21998105712

• Cardinal: 21998105712 can be written as Twenty-one billion, nine hundred ninety-eight million, one hundred five thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 2.1998105712 × 10¹⁰

Factors of 21998105712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 936

Divisors of 21998105712

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 67 72 81 88 99 108 132 134 144 162 176 198 201 216 243 264 268 297 324 396 402 432 486 528 536 594 603 648 729 737 792 804 853 891 972 1072 1188 1206 1296 1458 1474 1584 1608 1706 1782 1809 1944 2187 2211 2376 2412 2559 2673 2916 2948 3216 3412 3564 3618 3888 4374 4422 4752 4824 5118 5346 5427 5832 5896 6633 6824 7128 7236 7677 8019 8748 8844 9383 9648 10236 10692 10854 11664 11792 13266 13648 14256 14472 15354 16038 16281 17496 17688 18766 19899 20472 21384 21708 23031 24057 26532 28149 28944 30708 32076 32562 34992 35376 37532 39798 40944 42768 43416 46062 48114 48843 53064 56298 57151 59697 61416 64152 65124 69093 75064 79596 84447 86832 92124 96228 97686 106128 112596 114302 119394 122832 128304 130248 138186 146529 150128 159192 168894 171453 179091 184248 192456 195372 207279 225192 228604 238788 253341 260496 276372 293058 318384 337788 342906 358182 368496 384912 390744 414558 450384 457208 477576 506682 514359 537273 552744 586116 621837 628661 675576 685812 716364 760023 781488 829116 914416 955152 1013364 1028718 1074546 1105488 1172232 1243674 1257322 1351152 1371624 1432728 1520046 1543077 1611819 1658232 1865511 1885983 2026728 2057436 2149092 2280069 2344464 2487348 2514644 2743248 2865456 3040092 3086154 3223638 3316464 3731022 3771966 4053456 4114872 4298184 4560138 4629231 4974696 5029288 5657949 6080184 6172308 6447276 6840207 7462044 7543932 8229744 8596368 9120276 9258462 9949392 10058576 11315898 12160368 12344616 12894552 13680414 13887693 14924088 15087864 16973847 18240552 18516924 20520621 22631796 24689232 25789104 27360828 27775386 29848176 30175728 33947694 36481104 37033848 41041242 41663079 45263592 50921541 54721656 55550772 67895388 74067696 82082484 83326158 90527184 101843082 109443312 111101544 124989237 135790776 152764623 164164968 166652316 203686164 222203088 249978474 271581552 305529246 328329936 333304632 407372328 458293869 499956948 611058492 666609264 814744656 916587738 999913896 1222116984 1374881607 1833175476 1999827792 2444233968 2749763214 3666350952 5499526428 7332701904 10999052856 21998105712
• Sum of all divisors σ(n): 70857131520
• Sum of proper divisors (its aliquot sum) s(n): 48859025808
• 21998105712 is an abundant number, because the sum of its proper divisors (48859025808) is greater than itself. Its abundance is 26860920096

Bases of 21998105712

• Binary: 10100011111001100000111010001110000₂
• Hexadecimal: 0x51F307470
• Base-36: A3T3R00

Squares and roots of 21998105712

• 21998105712 squared (21998105712²) is 483916654916327026944
• 21998105712 cubed (21998105712³) is 10645249730646786453476784304128
• The square root of 21998105712 is 148317.5839609047
• The cube root of 21998105712 is 2801.9589060823

Scales and comparisons

• 21,998,105,712 seconds is equal to 699 years, 24 weeks, 3 days, 16 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,998,105,712 would take you about one thousand, three hundred ninety-eight 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 21998105712 cubic inches would be around 233.5 feet tall.

Recreational maths with 21998105712

• 21998105712 backwards is 21750189912
• The number of decimal digits it has is: 11
• The sum of 21998105712's digits is 45
• More coming soon!