21235427616

Names of 21235427616

• Cardinal: 21235427616 can be written as Twenty-one billion, two hundred thirty-five million, four hundred twenty-seven thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 2.1235427616 × 10¹⁰

Factors of 21235427616

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 16626

Divisors of 21235427616

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1097 1248 2194 3291 4388 6582 8776 13164 14261 15511 17552 26328 28522 31022 35104 42783 46533 52656 57044 62044 85566 93066 105312 114088 124088 171132 186132 201643 228176 248176 342264 372264 403286 456352 496352 604929 684528 744528 806572 1209858 1369056 1489056 1613144 2419716 3226288 4839432 6452576 9678864 17015567 19357728 34031134 51046701 68062268 102093402 136124536 204186804 221202371 272249072 408373608 442404742 544498144 663607113 816747216 884809484 1327214226 1633494432 1769618968 2654428452 3539237936 5308856904 7078475872 10617713808 21235427616
• Sum of all divisors σ(n): 60089516928
• Sum of proper divisors (its aliquot sum) s(n): 38854089312
• 21235427616 is an abundant number, because the sum of its proper divisors (38854089312) is greater than itself. Its abundance is 17618661696

Bases of 21235427616

• Binary: 10011110001101110101110100100100000₂
• Hexadecimal: 0x4F1BAE920
• Base-36: 9R70WTC

Squares and roots of 21235427616

• 21235427616 squared (21235427616²) is 450943386034375443456
• 21235427616 cubed (21235427616³) is 9575975633046925017277788880896
• The square root of 21235427616 is 145723.8059343773
• The cube root of 21235427616 is 2769.1958382811

Scales and comparisons

• 21,235,427,616 seconds is equal to 675 years, 11 weeks, 3 days, 9 hours, 53 minutes, 36 seconds.
• To count from 1 to 21,235,427,616 would take you about one thousand, three hundred fifty 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 21235427616 cubic inches would be around 230.8 feet tall.

Recreational maths with 21235427616

• 21235427616 backwards is 61672453212
• 21235427616 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21235427616's digits is 39
• More coming soon!