21312481400
21,312,481,400 is an even composite number composed of five prime numbers multiplied together.
21312481400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21312481400:
23 × 52 × 72 × 313 × 73
(2 × 2 × 2 × 5 × 5 × 7 × 7 × 31 × 31 × 31 × 73)See below for interesting mathematical facts about the number 21312481400 from the Numbermatics database.
Names of 21312481400
- Cardinal: 21312481400 can be written as Twenty-one billion, three hundred twelve million, four hundred eighty-one thousand, four hundred.
Scientific notation
- Scientific notation: 2.13124814 × 1010
Factors of 21312481400
Divisors of 21312481400
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 4 5 7 8 10 14 20 25 28 31 35 40 49 50 56 62 70 73 98 100 124 140 146 155 175 196 200 217 245 248 280 292 310 350 365 392 434 490 511 584 620 700 730 775 868 961 980 1022 1085 1225 1240 1400 1460 1519 1550 1736 1825 1922 1960 2044 2170 2263 2450 2555 2920 3038 3100 3577 3650 3844 4088 4340 4526 4805 4900 5110 5425 6076 6200 6727 7154 7300 7595 7688 8680 9052 9610 9800 10220 10850 11315 12152 12775 13454 14308 14600 15190 15841 17885 18104 19220 20440 21700 22630 24025 25550 26908 28616 29791 30380 31682 33635 35770 37975 38440 43400 45260 47089 48050 51100 53816 56575 59582 60760 63364 67270 70153 71540 75950 79205 89425 90520 94178 96100 102200 110887 113150 119164 126728 134540 140306 143080 148955 151900 158410 168175 178850 188356 192200 208537 221774 226300 235445 238328 269080 280612 297910 303800 316820 336350 350765 357700 376712 396025 417074 443548 452600 470890 491071 554435 561224 595820 633640 672700 701530 715400 744775 792050 834148 887096 941780 982142 1042685 1108870 1177225 1191640 1345400 1403060 1459759 1489550 1584100 1668296 1753825 1883560 1964284 2085370 2174743 2217740 2354450 2455355 2772175 2806120 2919518 2979100 3168200 3437497 3507650 3928568 4170740 4349486 4435480 4708900 4910710 5213425 5544350 5839036 5958200 6874994 7015300 7298795 8341480 8698972 9417800 9821420 10426850 10873715 11088700 11678072 12276775 13749988 14030600 14597590 15223201 17187485 17397944 19642840 20853700 21747430 22177400 24553550 27499976 29195180 30446402 34374970 36493975 41707400 43494860 49107100 54368575 58390360 60892804 68749940 72987950 76116005 85937425 86989720 98214200 106562407 108737150 121785608 137499880 145975900 152232010 171874850 213124814 217474300 291951800 304464020 343749700 380580025 426249628 434948600 532812035 608928040 687499400 761160050 852499256 1065624070 1522320100 2131248140 2664060175 3044640200 4262496280 5328120350 10656240700 21312481400
- Sum of all divisors σ(n): 60378814080
- Sum of proper divisors (its aliquot sum) s(n): 39066332680
- 21312481400 is an abundant number, because the sum of its proper divisors (39066332680) is greater than itself. Its abundance is 17753851280
Bases of 21312481400
- Binary: 100111101100101001010101000011110002
- Hexadecimal: 0x4F652A878
- Base-36: 9SGWFW8
Squares and roots of 21312481400
- 21312481400 squared (213124814002) is 454221863425345960000
- 21312481400 cubed (213124814003) is 9680595015726026061065144000000
-
The
square root of 21312481400 is 145987.9495026901 -
The
cube root of 21312481400 is 2772.5411826411
Scales and comparisons
How big is 21312481400?- 21,312,481,400 seconds is equal to 677 years, 34 weeks, 6 days, 5 hours, 43 minutes, 20 seconds.
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To count from 1 to 21,312,481,400 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 21312481400 cubic inches would be around 231 feet tall.
Recreational maths with 21312481400
- 21312481400 backwards is 00418421312
- The number of decimal digits it has is: 11
- The sum of 21312481400's digits is 26
- More coming soon!
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