1398391400

Names of 1398391400

• Cardinal: 1398391400 can be written as One billion, three hundred ninety-eight million, three hundred ninety-one thousand, four hundred.

Scientific notation

• Scientific notation: 1.3983914 × 10⁹

Factors of 1398391400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4648

Divisors of 1398391400

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 25 28 31 35 40 49 50 56 62 70 98 100 124 140 155 175 196 200 217 245 248 280 310 350 392 434 490 620 700 775 868 980 1085 1225 1240 1400 1519 1550 1736 1960 2170 2450 3038 3100 4340 4603 4900 5425 6076 6200 7595 8680 9206 9800 10850 12152 15190 18412 21700 23015 30380 32221 36824 37975 43400 46030 60760 64442 75950 92060 115075 128884 142693 151900 161105 184120 225547 230150 257768 285386 303800 322210 451094 460300 570772 644420 713465 805525 902188 920600 998851 1127735 1141544 1288840 1426930 1611050 1804376 1997702 2255470 2853860 3222100 3567325 3995404 4510940 4994255 5638675 5707720 6444200 6991957 7134650 7990808 9021880 9988510 11277350 13983914 14269300 19977020 22554700 24971275 27967828 28538600 34959785 39954040 45109400 49942550 55935656 69919570 99885100 139839140 174798925 199770200 279678280 349597850 699195700 1398391400
• Sum of all divisors σ(n): 3904928640
• Sum of proper divisors (its aliquot sum) s(n): 2506537240
• 1398391400 is an abundant number, because the sum of its proper divisors (2506537240) is greater than itself. Its abundance is 1108145840

Bases of 1398391400

• Binary: 1010011010110011100001001101000₂
• Hexadecimal: 0x5359C268
• Base-36: N4KDPK

Squares and roots of 1398391400

• 1398391400 squared (1398391400²) is 1955498507593960000
• 1398391400 cubed (1398391400³) is 2734552295732228355944000000
• The square root of 1398391400 is 37395.0718678277
• The cube root of 1398391400 is 1118.2603200123

Scales and comparisons

• 1,398,391,400 seconds is equal to 44 years, 24 weeks, 1 day, 2 hours, 3 minutes, 20 seconds.
• To count from 1 to 1,398,391,400 would take you about eighty-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 1398391400 cubic inches would be around 93.2 feet tall.

Recreational maths with 1398391400

• 1398391400 backwards is 0041938931
• The number of decimal digits it has is: 10
• The sum of 1398391400's digits is 38
• More coming soon!