399691738368

Names of 399691738368

• Cardinal: 399691738368 can be written as Three hundred ninety-nine billion, six hundred ninety-one million, seven hundred thirty-eight thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 3.99691738368 × 10¹¹

Factors of 399691738368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 299

Divisors of 399691738368

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 128 144 156 169 192 208 234 256 281 288 312 338 384 416 468 507 562 576 624 676 768 832 843 936 1014 1124 1152 1248 1352 1521 1664 1686 1872 2028 2197 2248 2304 2496 2529 2704 3042 3328 3372 3653 3744 4056 4394 4496 4992 5058 5408 6084 6591 6744 7306 7488 8112 8788 8992 9984 10116 10816 10959 12168 13182 13488 14612 14976 16224 17576 17984 19773 20232 21632 21918 24336 26364 26976 29224 29952 32448 32877 35152 35968 39546 40464 43264 43836 47489 48672 52728 53952 58448 64896 65754 70304 71936 78961 79092 80928 87672 94978 97344 105456 107904 116896 129792 131508 140608 142467 157922 158184 161856 175344 189956 194688 210912 215808 233792 236883 263016 281216 284934 315844 316368 323712 350688 379912 389376 421824 427401 467584 473766 526032 562432 569868 617357 631688 632736 647424 701376 710649 759824 843648 854802 935168 947532 1026493 1052064 1139736 1234714 1263376 1265472 1402752 1421298 1519648 1687296 1709604 1852071 1895064 2052986 2104128 2279472 2469428 2526752 2530944 2805504 2842596 3039296 3079479 3419208 3704142 3790128 4105972 4208256 4558944 4938856 5053504 5061888 5556213 5685192 6078592 6158958 6838416 7408284 7580256 8211944 8416512 9117888 9238437 9877712 10107008 11112426 11370384 12157184 12317916 13344409 13676832 14816568 15160512 16423888 18235776 18476874 19755424 20214016 22224852 22740768 24635832 26688818 27353664 29633136 30321024 32847776 36471552 36953748 39510848 40033227 44449704 45481536 49271664 53377636 54707328 59266272 60642048 65695552 73907496 79021696 80066454 88899408 90963072 98543328 106755272 109414656 118532544 120099681 131391104 147814992 158043392 160132908 173477317 177798816 181926144 197086656 213510544 237065088 240199362 262782208 295629984 320265816 346954634 355597632 394173312 427021088 474130176 480398724 520431951 591259968 640531632 693909268 711195264 788346624 854042176 960797448 1040863902 1182519936 1281063264 1387818536 1422390528 1561295853 1708084352 1921594896 2081727804 2365039872 2562126528 2775637072 3122591706 3416168704 3843189792 4163455608 5124253056 5551274144 6245183412 7686379584 8326911216 10248506112 11102548288 12490366824 15372759168 16653822432 22205096576 24980733648 30745518336 33307644864 44410193152 49961467296 66615289728 99922934592 133230579456 199845869184 399691738368
• Sum of all divisors σ(n): 1252858772620
• Sum of proper divisors (its aliquot sum) s(n): 853167034252
• 399691738368 is an abundant number, because the sum of its proper divisors (853167034252) is greater than itself. Its abundance is 453475295884

Bases of 399691738368

• Binary: 101110100001111011110111110110100000000₂
• Hexadecimal: 0x5D0F7BED00
• Base-36: 53M65340

Squares and roots of 399691738368

• 399691738368 squared (399691738368²) is 159753485719633763303424
• 399691738368 cubed (399691738368³) is 63852148417627882323051384806572032
• The square root of 399691738368 is 632211.7828449577
• The cube root of 399691738368 is 7366.1697682523

Scales and comparisons

• 399,691,738,368 seconds is equal to 12,708 years, 49 weeks, 6 days, 18 hours, 52 minutes, 48 seconds.
• To count from 1 to 399,691,738,368 would take you about twenty-five thousand, four hundred seventeen 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 399691738368 cubic inches would be around 613.8 feet tall.

Recreational maths with 399691738368

• 399691738368 backwards is 863837196993
• 399691738368 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 399691738368's digits is 72
• More coming soon!