1028867840

Names of 1028867840

• Cardinal: 1028867840 can be written as One billion, twenty-eight million, eight hundred sixty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.02886784 × 10⁹

Factors of 1028867840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 111

Divisors of 1028867840

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 64 65 70 73 77 80 88 91 104 110 112 121 128 130 140 143 146 154 160 176 182 208 220 224 242 256 260 280 286 292 308 320 352 364 365 385 416 440 448 455 484 511 520 560 572 584 605 616 640 704 715 728 730 770 803 832 847 880 896 910 949 968 1001 1022 1040 1120 1144 1168 1210 1232 1280 1408 1430 1456 1460 1540 1573 1606 1664 1694 1760 1792 1820 1898 1936 2002 2044 2080 2240 2288 2336 2420 2464 2555 2816 2860 2912 2920 3080 3146 3212 3328 3388 3520 3640 3796 3872 4004 4015 4088 4160 4235 4480 4576 4672 4745 4840 4928 5005 5110 5621 5720 5824 5840 6160 6292 6424 6643 6776 7040 7280 7592 7744 7865 8008 8030 8176 8320 8470 8833 8960 9152 9344 9490 9680 9856 10010 10220 10439 11011 11242 11440 11648 11680 12320 12584 12848 13286 13552 14080 14560 15184 15488 15730 16016 16060 16352 16640 16940 17666 18304 18688 18980 19360 19712 20020 20440 20878 22022 22484 22880 23296 23360 24640 25168 25696 26572 27104 28105 29120 30368 30976 31460 32032 32120 32704 33215 33880 35332 36608 37960 38720 40040 40880 41756 44044 44165 44968 45760 46720 49280 50336 51392 52195 53144 54208 55055 56210 58240 60736 61831 62920 64064 64240 65408 66430 67760 70664 73073 75920 77440 80080 81760 83512 88088 88330 89936 91520 93440 98560 100672 102784 104390 106288 108416 110110 112420 114829 116480 121472 123662 125840 128128 128480 130816 132860 135520 141328 146146 151840 154880 160160 163520 167024 176176 176660 179872 183040 201344 205568 208780 212576 216832 220220 224840 229658 242944 247324 251680 256256 256960 265720 271040 282656 292292 303680 309155 320320 327040 334048 352352 353320 359744 365365 402688 417560 425152 440440 449680 459316 494648 503360 513920 531440 542080 565312 574145 584584 607360 618310 640640 654080 668096 704704 706640 719488 730730 803803 835120 850304 880880 899360 918632 989296 1006720 1027840 1062880 1084160 1130624 1148290 1169168 1214720 1236620 1281280 1336192 1409408 1413280 1438976 1461460 1607606 1670240 1700608 1761760 1798720 1837264 1978592 2013440 2125760 2261248 2296580 2338336 2473240 2672384 2818816 2826560 2922920 3215212 3340480 3523520 3597440 3674528 3957184 4019015 4251520 4593160 4676672 4946480 5653120 5845840 6430424 6680960 7047040 7194880 7349056 7914368 8038030 8503040 9186320 9353344 9892960 11306240 11691680 12860848 13361920 14094080 14698112 15828736 16076060 18372640 18706688 19785920 23383360 25721696 29396224 32152120 36745280 39571840 46766720 51443392 64304240 73490560 79143680 93533440 102886784 128608480 146981120 205773568 257216960 514433920 1028867840
• Sum of all divisors σ(n): 3379664064
• Sum of proper divisors (its aliquot sum) s(n): 2350796224
• 1028867840 is an abundant number, because the sum of its proper divisors (2350796224) is greater than itself. Its abundance is 1321928384

Bases of 1028867840

• Binary: 111101010100110100011100000000₂
• Hexadecimal: 0x3D534700
• Base-36: H0K7I8

Squares and roots of 1028867840

• 1028867840 squared (1028867840²) is 1058569032186265600
• 1028867840 cubed (1028867840³) is 1089127633636373565538304000
• The square root of 1028867840 is 32075.9698216593
• The cube root of 1028867840 is 1009.5314756635

Scales and comparisons

• 1,028,867,840 seconds is equal to 32 years, 37 weeks, 1 day, 4 hours, 37 minutes, 20 seconds.
• To count from 1 to 1,028,867,840 would take you about sixty-five 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 1028867840 cubic inches would be around 84.1 feet tall.

Recreational maths with 1028867840

• 1028867840 backwards is 0487688201
• 1028867840 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1028867840's digits is 44
• More coming soon!