21312842148

Names of 21312842148

• Cardinal: 21312842148 can be written as Twenty-one billion, three hundred twelve million, eight hundred forty-two thousand, one hundred forty-eight.

Scientific notation

• Scientific notation: 2.1312842148 × 10¹⁰

Factors of 21312842148

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 476

Divisors of 21312842148

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 79 81 108 117 156 158 162 169 234 237 316 324 338 351 379 468 474 507 676 702 711 758 948 1014 1027 1053 1137 1404 1422 1516 1521 2028 2054 2106 2133 2197 2274 2844 3042 3081 3411 4108 4212 4266 4394 4548 4563 4927 6084 6162 6399 6591 6822 8532 8788 9126 9243 9854 10233 12324 12798 13182 13351 13644 13689 14781 18252 18486 19708 19773 20466 25596 26364 26702 27378 27729 29562 29941 30699 36972 39546 40053 40932 44343 53404 54756 55458 59124 59319 59882 61398 64051 79092 80106 83187 88686 89823 110916 118638 119764 120159 122796 128102 133029 160212 166374 173563 177372 177957 179646 192153 237276 240318 256204 266058 269469 332748 347126 355914 359292 360477 384306 389233 399087 480636 520689 532116 538938 576459 694252 711828 720954 768612 778466 798174 808407 832663 1041378 1077876 1081431 1152918 1167699 1441908 1556932 1562067 1596348 1616814 1665326 1729377 2082756 2162862 2305836 2335398 2425221 2497989 3124134 3233628 3330652 3458754 3503097 4325724 4670796 4686201 4850442 4995978 5060029 5188131 6248268 6917508 7006194 7493967 9372402 9700884 9991956 10120058 10376262 10509291 14012388 14058603 14987934 15180087 18744804 20240116 20752524 21018582 22481901 28117206 29975868 30360174 31527873 42037164 44963802 45540261 56234412 60720348 63055746 65780377 67445703 89927604 91080522 126111492 131560754 134891406 136620783 182161044 197341131 263121508 269782812 273241566 394682262 409862349 546483132 592023393 789364524 819724698 1184046786 1639449396 1776070179 2368093572 3552140358 5328210537 7104280716 10656421074 21312842148
• Sum of all divisors σ(n): 61282144000
• Sum of proper divisors (its aliquot sum) s(n): 39969301852
• 21312842148 is an abundant number, because the sum of its proper divisors (39969301852) is greater than itself. Its abundance is 18656459704

Bases of 21312842148

• Binary: 10011110110010110000010100110100100₂
• Hexadecimal: 0x4F65829A4
• Base-36: 9SH4690

Squares and roots of 21312842148

• 21312842148 squared (21312842148²) is 454237240425565253904
• 21312842148 cubed (21312842148³) is 9681086602933196600129492745792
• The square root of 21312842148 is 145989.1850377965
• The cube root of 21312842148 is 2772.5568257911

Scales and comparisons

• 21,312,842,148 seconds is equal to 677 years, 35 weeks, 3 days, 9 hours, 55 minutes, 48 seconds.
• To count from 1 to 21,312,842,148 would take you about one thousand, three hundred fifty-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 21312842148 cubic inches would be around 231 feet tall.

Recreational maths with 21312842148

• 21312842148 backwards is 84124821312
• 21312842148 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21312842148's digits is 36
• More coming soon!