64398916400

Names of 64398916400

• Cardinal: 64398916400 can be written as Sixty-four billion, three hundred ninety-eight million, nine hundred sixteen thousand, four hundred.

Scientific notation

• Scientific notation: 6.43989164 × 10¹⁰

Factors of 64398916400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 321

Divisors of 64398916400

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 25 26 28 31 35 40 49 50 52 56 62 65 70 80 91 98 100 104 112 124 130 140 155 175 182 196 200 208 217 245 248 260 263 280 310 325 350 364 392 400 403 434 455 490 496 520 526 560 620 637 650 700 728 775 784 806 868 910 961 980 1040 1052 1085 1225 1240 1274 1300 1315 1400 1456 1519 1550 1612 1736 1820 1841 1922 1960 2015 2104 2170 2275 2450 2480 2548 2600 2630 2800 2821 3038 3100 3185 3224 3419 3472 3640 3682 3844 3920 4030 4208 4340 4550 4805 4900 5096 5200 5260 5425 5642 6076 6200 6370 6448 6575 6727 6838 7280 7364 7595 7688 8060 8153 8680 9100 9205 9610 9800 10075 10192 10520 10850 11284 12152 12400 12493 12740 12887 13150 13454 13676 14105 14728 15190 15376 15925 16120 16306 17095 17360 18200 18410 19220 19600 19747 20150 21040 21700 22568 23933 24025 24304 24986 25480 25774 26300 26908 27352 28210 29456 30380 31850 32240 32612 33635 34190 36400 36820 37975 38440 39494 40300 40765 43400 45136 46025 47089 47866 48050 49972 50960 51548 52600 53816 54704 56420 57071 60760 62465 63700 64435 65224 67270 68380 70525 73640 75950 76880 78988 80600 81530 85475 86800 87451 92050 94178 95732 96100 98735 99944 103096 105200 105989 107632 112840 114142 119665 121520 124930 127400 128870 130448 134540 136760 141050 147280 151900 157976 161200 163060 167531 168175 170950 174902 184100 188356 191464 192200 197470 199888 203825 206192 211978 225680 228284 235445 239330 249860 252743 254800 257740 269080 273520 282100 285355 303800 312325 315952 322175 326120 335062 336350 341900 349804 368200 376712 382928 384400 394940 399497 407650 423956 437255 456568 470890 478660 493675 499720 505486 515480 529945 538160 564200 570710 598325 607600 612157 624650 644350 652240 670124 672700 683800 699608 736400 741923 753424 789880 798994 815300 837655 847912 874510 913136 941780 957320 987350 999440 1010972 1030960 1059890 1128400 1141420 1177225 1196650 1224314 1249300 1263715 1288700 1340248 1345400 1367600 1399216 1426775 1483846 1579760 1597988 1630600 1675310 1695824 1749020 1769201 1883560 1914640 1974700 1997485 2021944 2119780 2186275 2282840 2354450 2393300 2448628 2498600 2527430 2577400 2649725 2680496 2690800 2853550 2967692 3060785 3195976 3261200 3285659 3350620 3498040 3538402 3709615 3767120 3949400 3994970 4043888 4188275 4239560 4372550 4565680 4708900 4786600 4897256 4997200 5054860 5154800 5193461 5299450 5707100 5935384 6121570 6318575 6391952 6571318 6701240 6996080 7076804 7419230 7898800 7989940 8376550 8479120 8745100 8846005 9417800 9573200 9794512 9987425 10109720 10386922 10598900 11414200 11870768 12243140 12384407 12637150 13142636 13402480 14153608 14838460 15303925 15979880 16428295 16753100 17490200 17692010 18548075 18835600 19974850 20219440 20773844 21197800 22828400 22999613 24486280 24768814 25274300 25967305 26285272 28307216 29676920 30607850 31959760 32856590 33506200 34980400 35384020 37096150 39949700 41547688 42395600 44230025 45999226 48972560 49537628 50548600 51934610 52570544 59353840 61215700 61922035 65713180 67012400 70768040 74192300 79899400 82141475 83095376 88460050 91998452 99075256 101097200 103869220 114998065 122431400 123844070 129836525 131426360 141536080 148384600 159798800 160997291 164282950 176920100 183996904 198150512 207738440 229996130 244862800 247688140 259673050 262852720 296769200 309610175 321994582 328565900 353840200 367993808 415476880 459992260 495376280 519346100 574990325 619220350 643989164 657131800 707680400 804986455 919984520 990752560 1038692200 1149980650 1238440700 1287978328 1314263600 1609972910 1839969040 2077384400 2299961300 2476881400 2575956656 3219945820 4024932275 4599922600 4953762800 6439891640 8049864550 9199845200 12879783280 16099729100 32199458200 64398916400
• Sum of all divisors σ(n): 201038601456
• Sum of proper divisors (its aliquot sum) s(n): 136639685056
• 64398916400 is an abundant number, because the sum of its proper divisors (136639685056) is greater than itself. Its abundance is 72240768656

Bases of 64398916400

• Binary: 111011111110011110010111101100110000₂
• Hexadecimal: 0xEFE797B30
• Base-36: TL1G9WW

Squares and roots of 64398916400

• 64398916400 squared (64398916400²) is 4147220433494188960000
• 64398916400 cubed (64398916400³) is 267076501988964034720842944000000
• The square root of 64398916400 is 253769.4158089189
• The cube root of 64398916400 is 4008.2935507031

Scales and comparisons

• 64,398,916,400 seconds is equal to 2,047 years, 35 weeks, 4 days, 19 hours, 53 minutes, 20 seconds.
• To count from 1 to 64,398,916,400 would take you about four thousand and ninety-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 64398916400 cubic inches would be around 334 feet tall.

Recreational maths with 64398916400

• 64398916400 backwards is 00461989346
• 64398916400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64398916400's digits is 50
• More coming soon!