1385681920

Names of 1385681920

• Cardinal: 1385681920 can be written as One billion, three hundred eighty-five million, six hundred eighty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.38568192 × 10⁹

Factors of 1385681920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 78

Divisors of 1385681920

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 23 28 32 35 40 41 46 56 64 70 80 82 92 112 115 128 140 160 161 164 184 205 224 230 256 280 287 320 322 328 368 410 448 460 512 560 574 640 644 656 736 805 820 896 920 943 1024 1120 1148 1280 1288 1312 1435 1472 1610 1640 1681 1792 1840 1886 2240 2296 2560 2576 2624 2870 2944 3220 3280 3362 3584 3680 3772 4480 4592 4715 5120 5152 5248 5740 5888 6440 6560 6601 6724 7168 7360 7544 8405 8960 9184 9430 10304 10496 11480 11767 11776 12880 13120 13202 13448 14720 15088 16810 17920 18368 18860 20608 20992 22960 23534 23552 25760 26240 26404 26896 29440 30176 33005 33620 35840 36736 37720 38663 41216 41984 45920 47068 51520 52480 52808 53792 58835 58880 60352 66010 67240 73472 75440 77326 82432 91840 94136 103040 104960 105616 107584 117670 117760 120704 132020 134480 146944 150880 154652 164864 183680 188272 193315 206080 209920 211232 215168 235340 241408 264040 268960 270641 293888 301760 309304 367360 376544 386630 412160 422464 430336 470680 482816 528080 537920 541282 603520 618608 734720 753088 773260 824320 844928 860672 941360 965632 1056160 1075840 1082564 1207040 1237216 1353205 1469440 1506176 1546520 1689856 1721344 1882720 2112320 2151680 2165128 2414080 2474432 2706410 3012352 3093040 3379712 3765440 4224640 4303360 4330256 4828160 4948864 5412820 6024704 6186080 6759424 7530880 8449280 8606720 8660512 9897728 10825640 12049408 12372160 15061760 16898560 17321024 19795456 21651280 24744320 30123520 33797120 34642048 39590912 43302560 49488640 60247040 69284096 86605120 98977280 138568192 173210240 197954560 277136384 346420480 692840960 1385681920
• Sum of all divisors σ(n): 4063082112
• Sum of proper divisors (its aliquot sum) s(n): 2677400192
• 1385681920 is an abundant number, because the sum of its proper divisors (2677400192) is greater than itself. Its abundance is 1291718272

Bases of 1385681920

• Binary: 1010010100101111101010000000000₂
• Hexadecimal: 0x5297D400
• Base-36: MWZZ0G

Squares and roots of 1385681920

• 1385681920 squared (1385681920²) is 1920114383414886400
• 1385681920 cubed (1385681920³) is 2660667785429955943333888000
• The square root of 1385681920 is 37224.7487567075
• The cube root of 1385681920 is 1114.8621814147

Scales and comparisons

• 1,385,681,920 seconds is equal to 44 years, 3 weeks, 23 hours, 38 minutes, 40 seconds.
• To count from 1 to 1,385,681,920 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 1385681920 cubic inches would be around 92.9 feet tall.

Recreational maths with 1385681920

• 1385681920 backwards is 0291865831
• The number of decimal digits it has is: 10
• The sum of 1385681920's digits is 43
• More coming soon!