2128007640

Names of 2128007640

• Cardinal: 2128007640 can be written as Two billion, one hundred twenty-eight million, seven thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.12800764 × 10⁹

Factors of 2128007640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 308

Divisors of 2128007640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 17 20 22 24 30 33 34 37 40 44 51 55 60 66 68 74 85 88 102 110 111 120 121 132 136 148 165 170 185 187 204 220 222 233 242 255 264 296 330 340 363 370 374 407 408 440 444 466 484 510 555 561 605 629 660 680 699 726 740 748 814 888 932 935 968 1020 1110 1122 1165 1210 1221 1258 1320 1398 1452 1480 1496 1628 1815 1864 1870 1887 2035 2040 2057 2220 2244 2330 2420 2442 2516 2563 2796 2805 2904 3145 3256 3495 3630 3740 3774 3961 4070 4114 4440 4477 4488 4660 4840 4884 5032 5126 5592 5610 6105 6171 6290 6919 6990 7260 7480 7548 7689 7922 8140 8228 8621 8954 9320 9435 9768 10252 10285 11220 11883 12210 12342 12580 12815 13431 13838 13980 14520 15096 15378 15844 16280 16456 17242 17908 18870 19805 20504 20570 20757 22385 22440 23766 24420 24684 25160 25630 25863 26862 27676 27960 28193 30756 30855 31688 34484 34595 35816 37740 38445 39610 41140 41514 43105 43571 44770 47532 48840 49368 51260 51726 53724 55352 56386 59415 61512 61710 67155 68968 69190 75480 76109 76890 79220 82280 83028 84579 86210 87142 89540 94831 95064 102520 103452 103785 107448 112772 118830 123420 129315 130713 134310 138380 140965 146557 152218 153780 158440 166056 169158 172420 174284 179080 189662 206904 207570 217855 225544 228327 237660 246840 258630 261426 268620 276760 281930 284493 293114 304436 307560 338316 344840 348568 379324 380545 415140 422895 435710 439671 456654 474155 475320 479281 517260 522852 537240 563860 568986 586228 608872 653565 676632 732785 758648 761090 830280 845790 871420 879342 913308 948310 958562 1034520 1043141 1045704 1127720 1137972 1141635 1172456 1307130 1422465 1437843 1465570 1522180 1612127 1691580 1742840 1758684 1826616 1896620 1917124 2086282 2198355 2275944 2283270 2396405 2614260 2844930 2875686 2931140 3044360 3129423 3224254 3383160 3517368 3793240 3834248 4172564 4396710 4566540 4792810 4836381 5215705 5228520 5689860 5751372 5862280 6258846 6448508 7189215 8060635 8345128 8793420 9133080 9585620 9672762 10431410 11379720 11502744 12517692 12897016 14378430 15647115 16121270 17586840 17733397 19171240 19345524 20862820 24181905 25035384 28756860 31294230 32242540 35466794 38691048 41725640 48363810 53200191 57513720 62588460 64485080 70933588 88666985 96727620 106400382 125176920 141867176 177333970 193455240 212800764 266000955 354667940 425601528 532001910 709335880 1064003820 2128007640
• Sum of all divisors σ(n): 7663481280
• Sum of proper divisors (its aliquot sum) s(n): 5535473640
• 2128007640 is an abundant number, because the sum of its proper divisors (5535473640) is greater than itself. Its abundance is 3407466000

Bases of 2128007640

• Binary: 1111110110101101101000111011000₂
• Hexadecimal: 0x7ED6D1D8
• Base-36: Z6YL7C

Squares and roots of 2128007640

• 2128007640 squared (2128007640²) is 4528416515898369600
• 2128007640 cubed (2128007640³) is 9636504942933911972343744000
• The square root of 2128007640 is 46130.3331876109
• The cube root of 2128007640 is 1286.2470575779

Scales and comparisons

• 2,128,007,640 seconds is equal to 67 years, 34 weeks, 3 days, 17 hours, 14 minutes.
• To count from 1 to 2,128,007,640 would take you about one hundred thirty-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 2128007640 cubic inches would be around 107.2 feet tall.

Recreational maths with 2128007640

• 2128007640 backwards is 0467008212
• 2128007640 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2128007640's digits is 30
• More coming soon!