1978381123920

Names of 1978381123920

• Cardinal: 1978381123920 can be written as One trillion, nine hundred seventy-eight billion, three hundred eighty-one million, one hundred twenty-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.97838112392 × 10¹²

Factors of 1978381123920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 284

Divisors of 1978381123920

• Number of divisors d(n): 450
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 101 108 120 135 144 162 173 180 202 216 240 270 303 324 346 360 404 405 432 505 519 540 606 648 692 720 808 810 865 909 1010 1038 1080 1212 1296 1384 1515 1557 1616 1620 1730 1818 2020 2076 2160 2424 2595 2727 2768 3030 3114 3240 3460 3636 4040 4152 4545 4671 4848 5190 5454 6060 6228 6480 6920 7272 7785 8080 8181 8304 9090 9342 10201 10380 10908 12120 12456 13635 13840 14013 14544 15570 16362 17473 18180 18684 20402 20760 21816 23355 24240 24912 27270 28026 29929 30603 31140 32724 34946 36360 37368 40804 40905 41520 43632 46710 51005 52419 54540 56052 59858 61206 62280 65448 69892 70065 72720 74736 81608 81810 87365 89787 91809 93420 102010 104838 109080 112104 119716 122412 124560 130896 139784 140130 149645 153015 157257 163216 163620 174730 179574 183618 186840 204020 209676 218160 224208 239432 244824 262095 269361 275427 279568 280260 299290 306030 314514 327240 349460 359148 367236 373680 408040 419352 448935 459045 471771 478864 489648 524190 538722 550854 560520 598580 612060 629028 654480 698920 718296 734472 786285 808083 816080 826281 838704 897870 918090 943542 1048380 1077444 1101708 1121040 1197160 1224120 1258056 1346805 1377135 1397840 1415313 1436592 1468944 1572570 1616166 1652562 1764773 1795740 1836180 1887084 2096760 2154888 2203416 2358855 2394320 2424249 2448240 2516112 2693610 2754270 2830626 3022829 3145140 3232332 3305124 3529546 3591480 3672360 3774168 4040415 4131405 4193520 4309776 4406832 4717710 4848498 5294319 5387220 5508540 5661252 6045658 6290280 6464664 6610248 7059092 7076565 7182960 7344720 7548336 8080830 8262810 8823865 9068487 9435420 9696996 10588638 10774440 11017080 11322504 12091316 12121245 12580560 12929328 13220496 14118184 14153130 15114145 15882957 16161660 16525620 17647730 18136974 18870840 19393992 21177276 21548880 22034160 22645008 24182632 24242490 26471595 27205461 28236368 28306260 30228290 31765914 32323320 33051240 35295460 36273948 37741680 38787984 42354552 45342435 47648871 48365264 48484980 52943190 54410922 56612520 60456580 63531828 64646640 66102480 70590920 72547896 79414785 81616383 84709104 90684870 95297742 96969960 105886380 108821844 113225040 120913160 127063656 136027305 141181840 142946613 145095792 158829570 163232766 181369740 190595484 193939920 211772760 217643688 238244355 241826320 244849149 254127312 272054610 285893226 305305729 317659140 326465532 362739480 381190968 408081915 423545520 435287376 476488710 489698298 544109220 571786452 610611458 635318280 652931064 714733065 725478960 762381936 816163830 915917187 952977420 979396596 1088218440 1143572904 1221222916 1224245745 1270636560 1305862128 1429466130 1526528645 1632327660 1831834374 1905954840 1958793192 2176436880 2287145808 2442445832 2448491490 2747751561 2858932260 3053057290 3264655320 3663668748 3811909680 3917586384 4579585935 4884891664 4896982980 5495503122 5717864520 6106114580 6529310640 7327337496 8243254683 9159171870 9793965960 10991006244 11435729040 12212229160 13738757805 14654674992 16486509366 18318343740 19587931920 21982012488 24424458320 24729764049 27477515610 32973018732 36636687480 41216273415 43964024976 49459528098 54955031220 65946037464 73273374960 82432546830 98919056196 109910062440 123648820245 131892074928 164865093660 197838112392 219820124880 247297640490 329730187320 395676224784 494595280980 659460374640 989190561960 1978381123920
• Sum of all divisors σ(n): 6980263109754
• Sum of proper divisors (its aliquot sum) s(n): 5001881985834
• 1978381123920 is an abundant number, because the sum of its proper divisors (5001881985834) is greater than itself. Its abundance is 3023500861914

Bases of 1978381123920

• Binary: 11100110010100000101101000100000101010000₂
• Hexadecimal: 0x1CCA0B44150
• Base-36: P8UT1H00

Squares and roots of 1978381123920

• 1978381123920 squared (1978381123920²) is 3913991871482962396166400
• 1978381123920 cubed (1978381123920³) is 7743367637718207342458778731340288000
• The square root of 1978381123920 is 1406549.3677507377
• The cube root of 1978381123920 is 12553.6491431665

Scales and comparisons

• 1,978,381,123,920 seconds is equal to 62,906 years, 20 weeks, 5 days, 16 hours, 12 minutes.
• To count from 1 to 1,978,381,123,920 would take you about one hundred fifty-seven thousand, two hundred sixty-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 1978381123920 cubic inches would be around 1046.1 feet tall.

Recreational maths with 1978381123920

• 1978381123920 backwards is 0293211838791
• 1978381123920 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1978381123920's digits is 54
• More coming soon!