30205440

Names of 30205440

• Cardinal: 30205440 can be written as Thirty million, two hundred five thousand, four hundred forty.

Scientific notation

• Scientific notation: 3.020544 × 10⁷

Factors of 30205440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 52

Divisors of 30205440

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 23 24 27 30 32 36 38 40 45 46 48 54 57 60 64 69 72 76 80 90 92 95 96 108 114 115 120 128 135 138 144 152 160 171 180 184 190 192 207 216 228 230 240 256 270 276 285 288 304 320 342 345 360 368 380 384 414 432 437 456 460 480 512 513 540 552 570 576 608 621 640 684 690 720 736 760 768 828 855 864 874 912 920 960 1026 1035 1080 1104 1140 1152 1216 1242 1280 1311 1368 1380 1440 1472 1520 1536 1656 1710 1728 1748 1824 1840 1920 2052 2070 2160 2185 2208 2280 2304 2432 2484 2560 2565 2622 2736 2760 2880 2944 3040 3105 3312 3420 3456 3496 3648 3680 3840 3933 4104 4140 4320 4370 4416 4560 4608 4864 4968 5130 5244 5472 5520 5760 5888 6080 6210 6555 6624 6840 6912 6992 7296 7360 7680 7866 8208 8280 8640 8740 8832 9120 9728 9936 10260 10488 10944 11040 11520 11776 11799 12160 12420 13110 13248 13680 13824 13984 14592 14720 15732 16416 16560 17280 17480 17664 18240 19665 19872 20520 20976 21888 22080 23040 23598 24320 24840 26220 26496 27360 27968 29184 29440 31464 32832 33120 34560 34960 35328 36480 39330 39744 41040 41952 43776 44160 47196 48640 49680 52440 52992 54720 55936 58880 58995 62928 65664 66240 69120 69920 72960 78660 79488 82080 83904 87552 88320 94392 99360 104880 105984 109440 111872 117990 125856 131328 132480 139840 145920 157320 158976 164160 167808 176640 188784 198720 209760 218880 223744 235980 251712 262656 264960 279680 314640 317952 328320 335616 377568 397440 419520 437760 471960 503424 529920 559360 629280 656640 671232 755136 794880 839040 943920 1006848 1118720 1258560 1313280 1510272 1589760 1678080 1887840 2013696 2517120 3020544 3356160 3775680 5034240 6041088 7551360 10068480 15102720 30205440
• Sum of all divisors σ(n): 117849600
• Sum of proper divisors (its aliquot sum) s(n): 87644160
• 30205440 is an abundant number, because the sum of its proper divisors (87644160) is greater than itself. Its abundance is 57438720

Bases of 30205440

• Binary: 1110011001110011000000000₂
• Hexadecimal: 0x1CCE600
• Base-36: HZEO0

Squares and roots of 30205440

• 30205440 squared (30205440²) is 912368605593600
• 30205440 cubed (30205440³) is 27558495174141149184000
• The square root of 30205440 is 5495.9475980035
• The cube root of 30205440 is 311.4309152893

Scales and comparisons

• 30,205,440 seconds is equal to 49 weeks, 6 days, 14 hours, 24 minutes.
• To count from 1 to 30,205,440 would take you about twenty-two weeks!

  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 30205440 cubic inches would be around 26 feet tall.

Recreational maths with 30205440

• 30205440 backwards is 04450203
• 30205440 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30205440's digits is 18
• More coming soon!