31388513312
31,388,513,312 is an even composite number composed of six prime numbers multiplied together.
31388513312 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 31388513312:
25 × 132 × 17 × 29 × 61 × 193
(2 × 2 × 2 × 2 × 2 × 13 × 13 × 17 × 29 × 61 × 193)See below for interesting mathematical facts about the number 31388513312 from the Numbermatics database.
Names of 31388513312
- Cardinal: 31388513312 can be written as Thirty-one billion, three hundred eighty-eight million, five hundred thirteen thousand, three hundred twelve.
Scientific notation
- Scientific notation: 3.1388513312 × 1010
Factors of 31388513312
Divisors of 31388513312
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 8 13 16 17 26 29 32 34 52 58 61 68 104 116 122 136 169 193 208 221 232 244 272 338 377 386 416 442 464 488 493 544 676 754 772 793 884 928 976 986 1037 1352 1508 1544 1586 1768 1769 1952 1972 2074 2509 2704 2873 3016 3088 3172 3281 3536 3538 3944 4148 4901 5018 5408 5597 5746 6032 6176 6344 6409 6562 7072 7076 7888 8296 9802 10036 10309 11194 11492 11773 12064 12688 12818 13124 13481 14152 15776 16592 19604 20072 20618 22388 22984 22997 23546 25376 25636 26248 26962 28304 30073 32617 33184 39208 40144 41236 42653 44776 45968 45994 47092 51272 52496 53924 56608 60146 65234 72761 78416 80288 82472 83317 85306 89552 91936 91988 94184 95149 102544 104992 107848 120292 130468 145522 153049 156832 164944 166634 170612 175253 179104 183976 188368 190298 200141 205088 215696 240584 260936 291044 298961 306098 329888 333268 341224 341417 350506 367952 376736 380596 390949 400282 431392 481168 521872 554489 582088 597922 612196 666536 682448 682834 701012 735904 761192 781898 800564 945893 962336 1043744 1108978 1164176 1195844 1224392 1236937 1333072 1364896 1365668 1402024 1522384 1563796 1601128 1891786 1989637 2217956 2328352 2391688 2448784 2473874 2601833 2666144 2731336 2804048 3044768 3127592 3202256 3783572 3979274 4435912 4438421 4783376 4897568 4947748 5082337 5203666 5462672 5608096 5804089 6255184 6404512 7567144 7958548 8871824 8876842 9566752 9895496 10164674 10407332 10925344 11608178 12510368 15134288 15917096 16080181 17743648 17753684 19790992 20329348 20814664 23216356 30268576 31834192 32160362 33823829 35507368 39581984 40658696 41629328 46432712 57699473 63668384 64320724 67647658 71014736 75453157 81317392 83258656 92865424 115398946 128641448 135295316 142029472 150906314 162634784 185730848 230797892 257282896 270590632 301812628 461595784 514565792 541181264 603625256 923191568 980891041 1082362528 1207250512 1846383136 1961782082 2414501024 3923564164 7847128328 15694256656 31388513312
- Sum of all divisors σ(n): 74882238480
- Sum of proper divisors (its aliquot sum) s(n): 43493725168
- 31388513312 is an abundant number, because the sum of its proper divisors (43493725168) is greater than itself. Its abundance is 12105211856
Bases of 31388513312
- Binary: 111010011101110011010110100001000002
- Hexadecimal: 0x74EE6B420
- Base-36: EF3WRVK
Squares and roots of 31388513312
- 31388513312 squared (313885133122) is 985238767937601209344
- 31388513312 cubed (313885133123) is 30925180182907874344841442787328
-
The
square root of 31388513312 is 177168.0369366889 -
The
cube root of 31388513312 is 3154.4495214757
Scales and comparisons
How big is 31388513312?- 31,388,513,312 seconds is equal to 998 years, 2 weeks, 6 days, 23 hours, 28 minutes, 32 seconds.
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To count from 1 to 31,388,513,312 would take you about one thousand, nine hundred ninety-six 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 31388513312 cubic inches would be around 262.9 feet tall.
Recreational maths with 31388513312
- 31388513312 backwards is 21331588313
- The number of decimal digits it has is: 11
- The sum of 31388513312's digits is 38
- More coming soon!
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