3990920640

Names of 3990920640

• Cardinal: 3990920640 can be written as Three billion, nine hundred ninety million, nine hundred twenty thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.99092064 × 10⁹

Factors of 3990920640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2347

Divisors of 3990920640

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 37 40 42 48 49 56 60 64 70 74 80 84 96 98 105 111 112 120 140 147 148 160 168 185 192 196 210 222 224 240 245 259 280 294 296 320 336 370 392 420 444 448 480 490 518 555 560 588 592 672 735 740 777 784 840 888 960 980 1036 1110 1120 1176 1184 1295 1344 1470 1480 1554 1568 1680 1776 1813 1960 2072 2220 2240 2293 2352 2368 2590 2940 2960 3108 3136 3360 3552 3626 3885 3920 4144 4440 4586 4704 5180 5439 5880 5920 6216 6720 6879 7104 7252 7770 7840 8288 8880 9065 9172 9408 10360 10878 11465 11760 11840 12432 13758 14504 15540 15680 16051 16576 17760 18130 18344 20720 21756 22930 23520 24864 27195 27516 29008 31080 32102 34395 35520 36260 36688 41440 43512 45860 47040 48153 49728 54390 55032 58016 62160 64204 68790 72520 73376 80255 82880 84841 87024 91720 96306 108780 110064 112357 116032 124320 128408 137580 145040 146752 160510 169682 174048 183440 192612 217560 220128 224714 240765 248640 254523 256816 275160 290080 321020 337071 339364 348096 366880 385224 424205 435120 440256 449428 481530 509046 513632 550320 561785 580160 593887 642040 674142 678728 733760 770448 848410 870240 898856 963060 1018092 1027264 1100640 1123570 1187774 1272615 1284080 1348284 1357456 1540896 1685355 1696820 1740480 1781661 1797712 1926120 2036184 2201280 2247140 2375548 2545230 2568160 2696568 2714912 2969435 3081792 3370710 3393640 3563322 3595424 3852240 4072368 4157209 4494280 4751096 5090460 5136320 5393136 5429824 5938870 6741420 6787280 7126644 7190848 7704480 8144736 8314418 8908305 8988560 9502192 10180920 10786272 11877740 12471627 13482840 13574560 14253288 15408960 16289472 16628836 17816610 17977120 19004384 20361840 20786045 21572544 23755480 24943254 26965680 27149120 28506576 33257672 35633220 35954240 38008768 40723680 41572090 47510960 49886508 53931360 57013152 62358135 66515344 71266440 81447360 83144180 95021920 99773016 107862720 114026304 124716270 133030688 142532880 166288360 190043840 199546032 249432540 266061376 285065760 332576720 399092064 498865080 570131520 665153440 798184128 997730160 1330306880 1995460320 3990920640
• Sum of all divisors σ(n): 15144914592
• Sum of proper divisors (its aliquot sum) s(n): 11153993952
• 3990920640 is an abundant number, because the sum of its proper divisors (11153993952) is greater than itself. Its abundance is 7163073312

Bases of 3990920640

• Binary: 11101101111000001001110111000000₂
• Hexadecimal: 0xEDE09DC0
• Base-36: 1U03A2O

Squares and roots of 3990920640

• 3990920640 squared (3990920640²) is 15927447554778009600
• 3990920640 cubed (3990920640³) is 63565179188881089130758144000
• The square root of 3990920640 is 63173.7337823245
• The cube root of 3990920640 is 1586.1990932897

Scales and comparisons

• 3,990,920,640 seconds is equal to 126 years, 46 weeks, 5 days, 5 hours, 4 minutes.
• To count from 1 to 3,990,920,640 would take you about two hundred fifty-three 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 3990920640 cubic inches would be around 132.2 feet tall.

Recreational maths with 3990920640

• 3990920640 backwards is 0460290993
• 3990920640 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 3990920640's digits is 42
• More coming soon!