30985920

Names of 30985920

• Cardinal: 30985920 can be written as Thirty million, nine hundred eighty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.098592 × 10⁷

Factors of 30985920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 99

Divisors of 30985920

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 29 30 32 35 36 40 42 45 48 53 56 58 60 63 64 70 72 80 84 87 90 96 105 106 112 116 120 126 140 144 145 159 160 168 174 180 192 203 210 212 224 232 240 252 261 265 280 288 290 315 318 320 336 348 360 371 406 420 424 435 448 464 477 480 504 522 530 560 576 580 609 630 636 672 696 720 742 795 812 840 848 870 928 954 960 1008 1015 1044 1060 1113 1120 1160 1218 1260 1272 1305 1344 1392 1440 1484 1537 1590 1624 1680 1696 1740 1827 1855 1856 1908 2016 2030 2088 2120 2226 2240 2320 2385 2436 2520 2544 2610 2784 2880 2968 3045 3074 3180 3248 3339 3360 3392 3480 3654 3710 3816 4032 4060 4176 4240 4452 4611 4640 4770 4872 5040 5088 5220 5565 5568 5936 6090 6148 6360 6496 6678 6720 6960 7308 7420 7632 7685 8120 8352 8480 8904 9135 9222 9280 9540 9744 10080 10176 10440 10759 11130 11872 12180 12296 12720 12992 13356 13833 13920 14616 14840 15264 15370 16240 16695 16704 16960 17808 18270 18444 19080 19488 20160 20880 21518 22260 23055 23744 24360 24592 25440 26712 27666 27840 29232 29680 30528 30740 32277 32480 33390 35616 36540 36888 38160 38976 41760 43036 44520 46110 48720 49184 50880 53424 53795 55332 58464 59360 61480 64554 64960 66780 69165 71232 73080 73776 76320 83520 86072 89040 92220 96831 97440 98368 106848 107590 110664 116928 118720 122960 129108 133560 138330 146160 147552 152640 161385 172144 178080 184440 193662 194880 213696 215180 221328 245920 258216 267120 276660 292320 295104 322770 344288 356160 368880 387324 430360 442656 484155 491840 516432 534240 553320 584640 645540 688576 737760 774648 860720 885312 968310 1032864 1068480 1106640 1291080 1475520 1549296 1721440 1936620 2065728 2213280 2582160 3098592 3442880 3873240 4426560 5164320 6197184 7746480 10328640 15492960 30985920
• Sum of all divisors σ(n): 128381760
• Sum of proper divisors (its aliquot sum) s(n): 97395840
• 30985920 is an abundant number, because the sum of its proper divisors (97395840) is greater than itself. Its abundance is 66409920

Bases of 30985920

• Binary: 1110110001100111011000000₂
• Hexadecimal: 0x1D8CEC0
• Base-36: IG4W0

Squares and roots of 30985920

• 30985920 squared (30985920²) is 960127238246400
• 30985920 cubed (30985920³) is 29750425794123890688000
• The square root of 30985920 is 5566.4997978981
• The cube root of 30985920 is 314.0904982093

Scales and comparisons

• 30,985,920 seconds is equal to 51 weeks, 1 day, 15 hours, 12 minutes.
• To count from 1 to 30,985,920 would take you about twenty-four 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 30985920 cubic inches would be around 26.2 feet tall.

Recreational maths with 30985920

• 30985920 backwards is 02958903
• 30985920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30985920's digits is 36
• More coming soon!