640943355168

Names of 640943355168

• Cardinal: 640943355168 can be written as Six hundred forty billion, nine hundred forty-three million, three hundred fifty-five thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 6.40943355168 × 10¹¹

Factors of 640943355168

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 761

Divisors of 640943355168

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 68 72 81 96 102 108 136 144 153 162 204 216 243 272 288 306 324 408 432 459 486 544 612 648 729 739 816 864 918 972 1224 1296 1377 1458 1478 1632 1836 1944 2187 2217 2448 2592 2754 2916 2956 3672 3888 4131 4374 4434 4896 5508 5832 5912 6561 6651 7344 7776 8262 8748 8868 11016 11664 11824 12393 12563 13122 13302 14688 16524 17496 17736 19683 19953 22032 23328 23648 24786 25126 26244 26604 33048 34992 35472 37179 37689 39366 39906 44064 49572 50252 52488 53208 59049 59859 66096 69984 70944 74358 75378 78732 79812 99144 100504 104976 106416 111537 113067 118098 119718 132192 148716 150756 157464 159624 177147 179577 198288 201008 209952 212832 223074 226134 236196 239436 297432 301512 314928 319248 334611 339201 354294 359154 396576 402016 446148 452268 472392 478872 531441 538731 594864 603024 629856 638496 669222 678402 708588 718308 892296 904536 944784 957744 1003833 1017603 1062882 1077462 1189728 1206048 1338444 1356804 1417176 1436616 1594323 1616193 1784592 1809072 1889568 1915488 2007666 2035206 2125764 2154924 2676888 2713608 2834352 2873232 3011499 3052809 3188646 3232386 3569184 3618144 4015332 4070412 4251528 4309848 4848579 5353776 5427216 5668704 5746464 6022998 6105618 6377292 6464772 8030664 8140824 8503056 8619696 9034497 9158427 9697158 10707552 10854432 12045996 12211236 12754584 12929544 14545737 16061328 16281648 17006112 17239392 18068994 18316854 19394316 24091992 24422472 25509168 25859088 27103491 27475281 29091474 32122656 32563296 36137988 36633708 38788632 43637211 48183984 48844944 51018336 51718176 54206982 54950562 58182948 72275976 73267416 77577264 82425843 87274422 96367968 97689888 108413964 109901124 116365896 130911633 144551952 146534832 155154528 164851686 174548844 216827928 219802248 232731792 247277529 261823266 289103904 293069664 329703372 349097688 392734899 433655856 439604496 465463584 494555058 523646532 659406744 698195376 741832587 785469798 867311712 879208992 989110116 1047293064 1178204697 1318813488 1396390752 1483665174 1570939596 1978220232 2094586128 2225497761 2356409394 2637626976 2967330348 3141879192 3956440464 4189172256 4450995522 4712818788 5934660696 6283758384 6676493283 7912880928 8901991044 9425637576 11869321392 12567516768 13352986566 17803982088 18851275152 20029479849 23738642784 26705973132 35607964176 37702550304 40058959698 53411946264 71215928352 80117919396 106823892528 160235838792 213647785056 320471677584 640943355168
• Sum of all divisors σ(n): 2006837713440
• Sum of proper divisors (its aliquot sum) s(n): 1365894358272
• 640943355168 is an abundant number, because the sum of its proper divisors (1365894358272) is greater than itself. Its abundance is 724951003104

Bases of 640943355168

• Binary: 1001010100111011001100110111010100100000₂
• Hexadecimal: 0x953B337520
• Base-36: 86G14I00

Squares and roots of 640943355168

• 640943355168 squared (640943355168²) is 410808384534012992308224
• 640943355168 cubed (640943355168³) is 263304904314376207505336467359301632
• The square root of 640943355168 is 800589.3798746021
• The cube root of 640943355168 is 8621.9708420789

Scales and comparisons

• 640,943,355,168 seconds is equal to 20,380 years, 5 days, 20 hours, 52 minutes, 48 seconds.
• To count from 1 to 640,943,355,168 would take you about forty thousand, seven hundred sixty 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 640943355168 cubic inches would be around 718.5 feet tall.

Recreational maths with 640943355168

• 640943355168 backwards is 861553349046
• 640943355168 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640943355168's digits is 54
• More coming soon!