21684359136

Names of 21684359136

• Cardinal: 21684359136 can be written as Twenty-one billion, six hundred eighty-four million, three hundred fifty-nine thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 2.1684359136 × 10¹⁰

Factors of 21684359136

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 662448

Divisors of 21684359136

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 31 32 33 44 48 62 66 88 93 96 124 132 176 186 248 264 341 352 372 496 528 682 744 992 1023 1056 1364 1488 2046 2728 2976 4092 5456 8184 10912 16368 32736 662401 1324802 1987203 2649604 3974406 5299208 7286411 7948812 10598416 14572822 15897624 20534431 21196832 21859233 29145644 31795248 41068862 43718466 58291288 61603293 63590496 82137724 87436932 116582576 123206586 164275448 174873864 225878741 233165152 246413172 328550896 349747728 451757482 492826344 657101792 677636223 699495456 903514964 985652688 1355272446 1807029928 1971305376 2710544892 3614059856 5421089784 7228119712 10842179568 21684359136
• Sum of all divisors σ(n): 64099316736
• Sum of proper divisors (its aliquot sum) s(n): 42414957600
• 21684359136 is an abundant number, because the sum of its proper divisors (42414957600) is greater than itself. Its abundance is 20730598464

Bases of 21684359136

• Binary: 10100001100011111010000111111100000₂
• Hexadecimal: 0x50C7D0FE0
• Base-36: 9YMB2LC

Squares and roots of 21684359136

• 21684359136 squared (21684359136²) is 470211431139026666496
• 21684359136 cubed (21684359136³) is 10196233542671187781780162707456
• The square root of 21684359136 is 147256.1005052083
• The cube root of 21684359136 is 2788.5741499675

Scales and comparisons

• 21,684,359,136 seconds is equal to 689 years, 25 weeks, 5 days, 9 hours, 5 minutes, 36 seconds.
• To count from 1 to 21,684,359,136 would take you about one thousand, three hundred seventy-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 21684359136 cubic inches would be around 232.4 feet tall.

Recreational maths with 21684359136

• 21684359136 backwards is 63195348612
• 21684359136 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21684359136's digits is 48
• More coming soon!