1397609640

Names of 1397609640

• Cardinal: 1397609640 can be written as One billion, three hundred ninety-seven million, six hundred nine thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.39760964 × 10⁹

Factors of 1397609640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 225

Divisors of 1397609640

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 41 42 45 54 56 60 63 70 72 81 82 84 90 105 108 120 123 126 135 140 162 164 167 168 180 189 205 210 216 243 246 252 270 280 287 315 324 328 334 360 369 378 405 410 420 486 492 501 504 540 567 574 615 630 648 668 729 738 756 810 820 835 840 861 945 972 984 1002 1080 1107 1134 1148 1169 1215 1230 1260 1336 1435 1458 1476 1503 1512 1620 1640 1670 1701 1722 1845 1890 1944 2004 2214 2268 2296 2338 2430 2460 2505 2520 2583 2835 2870 2916 2952 3006 3240 3321 3340 3402 3444 3507 3645 3690 3780 4008 4305 4428 4509 4536 4676 4860 4920 5010 5103 5166 5535 5670 5740 5832 5845 6012 6642 6680 6804 6847 6888 7014 7290 7380 7515 7560 7749 8505 8610 8856 9018 9352 9720 9963 10020 10206 10332 10521 11070 11340 11480 11690 12024 12915 13284 13527 13608 13694 14028 14580 14760 15030 15498 16605 17010 17220 17535 18036 19926 20040 20412 20541 20664 21042 22140 22545 22680 23247 23380 25515 25830 26568 27054 27388 28056 29160 29889 30060 30996 31563 33210 34020 34235 34440 35070 36072 38745 39852 40581 40824 41082 42084 44280 45090 46494 46760 47929 49815 51030 51660 52605 54108 54776 59778 60120 61623 61992 63126 66420 67635 68040 68470 69741 70140 77490 79704 81162 82164 84168 90180 92988 94689 95858 99630 102060 102705 103320 105210 108216 116235 119556 121743 123246 126252 132840 135270 136940 139482 140280 143787 149445 154980 157815 162324 164328 180360 184869 185976 189378 191716 199260 202905 204120 205410 209223 210420 232470 239112 239645 243486 246492 252504 270540 273880 278964 284067 287574 298890 308115 309960 315630 324648 348705 369738 378756 383432 398520 405810 410820 418446 420840 431361 464940 473445 479290 486972 492984 541080 554607 557928 568134 575148 597780 608715 616230 631260 697410 718935 739476 757512 811620 821640 836892 852201 862722 924345 929880 946890 958580 973944 1046115 1109214 1136268 1150296 1195560 1217430 1232460 1262520 1294083 1394820 1420335 1437870 1478952 1623240 1663821 1673784 1704402 1725444 1848690 1893780 1917160 2092230 2156805 2218428 2272536 2434860 2464920 2588166 2773035 2789640 2840670 2875740 3327642 3408804 3450888 3697380 3787560 3882249 4184460 4261005 4313610 4436856 4869720 4991463 5176332 5546070 5681340 5751480 6470415 6655284 6817608 7394760 7764498 8319105 8368920 8522010 8627220 9982926 10352664 11092140 11362680 11646747 12940830 13310568 15528996 16638210 17044020 17254440 19411245 19965852 22184280 23293494 24957315 25881660 31057992 33276420 34088040 34940241 38822490 39931704 46586988 49914630 51763320 58233735 66552840 69880482 77644980 93173976 99829260 116467470 139760964 155289960 174701205 199658520 232934940 279521928 349402410 465869880 698804820 1397609640
• Sum of all divisors σ(n): 5552789760
• Sum of proper divisors (its aliquot sum) s(n): 4155180120
• 1397609640 is an abundant number, because the sum of its proper divisors (4155180120) is greater than itself. Its abundance is 2757570480

Bases of 1397609640

• Binary: 1010011010011011101010010101000₂
• Hexadecimal: 0x534DD4A8
• Base-36: N43MI0

Squares and roots of 1397609640

• 1397609640 squared (1397609640²) is 1953312705820929600
• 1397609640 cubed (1397609640³) is 2729968667589815322721344000
• The square root of 1397609640 is 37384.6176923077
• The cube root of 1397609640 is 1118.0518962131

Scales and comparisons

• 1,397,609,640 seconds is equal to 44 years, 22 weeks, 6 days, 54 minutes.
• To count from 1 to 1,397,609,640 would take you about eighty-eight 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 1397609640 cubic inches would be around 93.2 feet tall.

Recreational maths with 1397609640

• 1397609640 backwards is 0469067931
• 1397609640 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1397609640's digits is 45
• More coming soon!