30728880

Names of 30728880

• Cardinal: 30728880 can be written as Thirty million, seven hundred twenty-eight thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 3.072888 × 10⁷

Factors of 30728880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 97

Divisors of 30728880

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 35 36 39 40 42 45 48 49 52 56 60 63 65 67 70 72 78 80 84 90 91 98 104 105 112 117 120 126 130 134 140 144 147 156 168 180 182 195 196 201 208 210 234 240 245 252 260 268 273 280 294 312 315 335 336 360 364 390 392 402 420 441 455 468 469 490 504 520 536 546 560 585 588 603 624 630 637 670 720 728 735 780 784 804 819 840 871 882 910 936 938 980 1005 1008 1040 1072 1092 1170 1176 1206 1260 1274 1340 1365 1407 1456 1470 1560 1608 1638 1680 1742 1764 1820 1872 1876 1911 1960 2010 2184 2205 2340 2345 2352 2412 2520 2548 2613 2680 2730 2814 2940 3015 3120 3185 3216 3276 3283 3484 3528 3640 3752 3822 3920 4020 4095 4221 4355 4368 4410 4680 4690 4824 5040 5096 5226 5360 5460 5628 5733 5880 6030 6097 6370 6552 6566 6968 7035 7056 7280 7504 7644 7839 8040 8190 8442 8710 8820 9360 9380 9555 9648 9849 10192 10452 10920 11256 11466 11760 12060 12194 12740 13065 13104 13132 13936 14070 15288 15678 16080 16380 16415 16884 17420 17640 18291 18760 19110 19698 20904 21105 21840 22512 22932 24120 24388 25480 26130 26264 28140 28665 29547 30485 30576 31356 32760 32830 33768 34840 35280 36582 37520 38220 39195 39396 41808 42210 42679 45864 48240 48776 49245 50960 52260 52528 54873 56280 57330 59094 60970 62712 65520 65660 67536 69680 73164 76440 78390 78792 84420 85358 91455 91728 97552 98490 104520 109746 112560 114660 118188 121940 125424 128037 131320 146328 147735 152880 156780 157584 168840 170716 182910 196980 209040 213395 219492 229320 236376 243880 256074 262640 274365 292656 295470 313560 337680 341432 365820 384111 393960 426790 438984 458640 472752 487760 512148 548730 590940 627120 640185 682864 731640 768222 787920 853580 877968 1024296 1097460 1181880 1280370 1463280 1536444 1707160 1920555 2048592 2194920 2363760 2560740 3072888 3414320 3841110 4389840 5121480 6145776 7682220 10242960 15364440 30728880
• Sum of all divisors σ(n): 131210352
• Sum of proper divisors (its aliquot sum) s(n): 100481472
• 30728880 is an abundant number, because the sum of its proper divisors (100481472) is greater than itself. Its abundance is 69752592

Bases of 30728880

• Binary: 1110101001110001010110000₂
• Hexadecimal: 0x1D4E2B0
• Base-36: IAMK0

Squares and roots of 30728880

• 30728880 squared (30728880²) is 944264066054400
• 30728880 cubed (30728880³) is 29016177174097731072000
• The square root of 30728880 is 5543.3635998373
• The cube root of 30728880 is 313.2195854911

Scales and comparisons

• 30,728,880 seconds is equal to 50 weeks, 5 days, 15 hours, 48 minutes.
• To count from 1 to 30,728,880 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 30728880 cubic inches would be around 26.1 feet tall.

Recreational maths with 30728880

• 30728880 backwards is 08882703
• 30728880 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30728880's digits is 36
• More coming soon!