21400960

Names of 21400960

• Cardinal: 21400960 can be written as Twenty-one million, four hundred thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.140096 × 10⁷

Factors of 21400960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 312

Divisors of 21400960

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 128 136 140 160 170 224 238 272 280 281 320 340 448 476 544 560 562 595 640 680 896 952 1088 1120 1124 1190 1360 1405 1904 1967 2176 2240 2248 2380 2720 2810 3808 3934 4480 4496 4760 4777 5440 5620 7616 7868 8992 9520 9554 9835 10880 11240 15232 15736 17984 19040 19108 19670 22480 23885 31472 33439 35968 38080 38216 39340 44960 47770 62944 66878 76160 76432 78680 89920 95540 125888 133756 152864 157360 167195 179840 191080 251776 267512 305728 314720 334390 382160 535024 611456 629440 668780 764320 1070048 1258880 1337560 1528640 2140096 2675120 3057280 4280192 5350240 10700480 21400960
• Sum of all divisors σ(n): 62130240
• Sum of proper divisors (its aliquot sum) s(n): 40729280
• 21400960 is an abundant number, because the sum of its proper divisors (40729280) is greater than itself. Its abundance is 19328320

Bases of 21400960

• Binary: 1010001101000110110000000₂
• Hexadecimal: 0x1468D80
• Base-36: CQP34

Squares and roots of 21400960

• 21400960 squared (21400960²) is 458001088921600
• 21400960 cubed (21400960³) is 9801662983967604736000
• The square root of 21400960 is 4626.1171623729
• The cube root of 21400960 is 277.6372613157

Scales and comparisons

• 21,400,960 seconds is equal to 35 weeks, 2 days, 16 hours, 42 minutes, 40 seconds.
• To count from 1 to 21,400,960 would take you about thirteen hours!

  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 21400960 cubic inches would be around 23.1 feet tall.

Recreational maths with 21400960

• 21400960 backwards is 06900412
• The number of decimal digits it has is: 8
• The sum of 21400960's digits is 22
• More coming soon!