28427198720

Names of 28427198720

• Cardinal: 28427198720 can be written as Twenty-eight billion, four hundred twenty-seven million, one hundred ninety-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.842719872 × 10¹⁰

Factors of 28427198720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 234

Divisors of 28427198720

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 53 64 68 80 85 106 128 136 157 160 170 212 256 265 272 314 320 340 424 530 544 628 640 680 785 848 901 1060 1088 1256 1280 1360 1570 1696 1802 2120 2176 2512 2669 2720 3140 3392 3604 4240 4352 4505 5024 5338 5440 6280 6784 7208 8321 8480 9010 10048 10676 10880 12560 13345 13568 14416 16642 16960 18020 20096 21352 21760 24649 25120 26690 28832 33284 33920 36040 40192 41605 42704 49298 50240 53380 57664 66568 67840 72080 83210 85408 98596 100480 106760 115328 123245 133136 141457 144160 166420 170816 197192 200960 213520 230656 246490 266272 282914 288320 332840 341632 394384 419033 427040 492980 532544 565828 576640 665680 683264 707285 788768 838066 854080 985960 1065088 1131656 1153280 1306397 1331360 1414570 1577536 1676132 1708160 1971920 2095165 2130176 2263312 2612794 2662720 2829140 3155072 3352264 3416320 3943840 4190330 4526624 5225588 5325440 5658280 6310144 6531985 6704528 7887680 8380660 9053248 10451176 10650880 11316560 13063970 13409056 15775360 16761320 18106496 20902352 22208749 22633120 26127940 26818112 31550720 33522640 36212992 41804704 44417498 45266240 52255880 53636224 67045280 83609408 88834996 90532480 104511760 107272448 111043745 134090560 167218816 177669992 181064960 209023520 222087490 268181120 334437632 355339984 418047040 444174980 536362240 710679968 836094080 888349960 1421359936 1672188160 1776699920 2842719872 3553399840 5685439744 7106799680 14213599360 28427198720
• Sum of all divisors σ(n): 73928630664
• Sum of proper divisors (its aliquot sum) s(n): 45501431944
• 28427198720 is an abundant number, because the sum of its proper divisors (45501431944) is greater than itself. Its abundance is 17074233224

Bases of 28427198720

• Binary: 11010011110011001001010000100000000₂
• Hexadecimal: 0x69E64A100
• Base-36: D24TIWW

Squares and roots of 28427198720

• 28427198720 squared (28427198720²) is 808105627066369638400
• 28427198720 cubed (28427198720³) is 22972179247365900339771342848000
• The square root of 28427198720 is 168603.6735068367
• The cube root of 28427198720 is 3051.9542691803

Scales and comparisons

• 28,427,198,720 seconds is equal to 903 years, 46 weeks, 4 days, 12 hours, 5 minutes, 20 seconds.
• To count from 1 to 28,427,198,720 would take you about one thousand, eight hundred seven 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 28427198720 cubic inches would be around 254.3 feet tall.

Recreational maths with 28427198720

• 28427198720 backwards is 02789172482
• The number of decimal digits it has is: 11
• The sum of 28427198720's digits is 50
• More coming soon!