13257972

Names of 13257972

• Cardinal: 13257972 can be written as Thirteen million, two hundred fifty-seven thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.3257972 × 10⁷

Factors of 13257972

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 115

Divisors of 13257972

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 19 21 26 27 28 36 38 39 42 52 54 57 63 71 76 78 84 91 108 114 117 126 133 142 156 171 182 189 213 228 234 247 252 266 273 284 342 351 364 378 399 426 468 494 497 513 532 546 639 684 702 741 756 798 819 852 923 988 994 1026 1092 1197 1278 1349 1404 1482 1491 1596 1638 1729 1846 1917 1988 2052 2223 2394 2457 2556 2698 2769 2964 2982 3276 3458 3591 3692 3834 4047 4446 4473 4788 4914 5187 5396 5538 5964 6461 6669 6916 7182 7668 8094 8307 8892 8946 9443 9828 10374 11076 12141 12922 13338 13419 14364 15561 16188 16614 17537 17892 18886 19383 20748 24282 24921 25844 26676 26838 28329 31122 33228 35074 36423 37772 38766 46683 48564 49842 52611 53676 56658 58149 62244 70148 72846 77532 84987 93366 99684 105222 113316 116298 122759 145692 157833 169974 174447 186732 210444 232596 245518 254961 315666 339948 348894 368277 473499 491036 509922 631332 697788 736554 946998 1019844 1104831 1473108 1893996 2209662 3314493 4419324 6628986 13257972
• Sum of all divisors σ(n): 45158400
• Sum of proper divisors (its aliquot sum) s(n): 31900428
• 13257972 is an abundant number, because the sum of its proper divisors (31900428) is greater than itself. Its abundance is 18642456

Bases of 13257972

• Binary: 110010100100110011110100₂
• Hexadecimal: 0xCA4CF4
• Base-36: 7W5X0

Squares and roots of 13257972

• 13257972 squared (13257972²) is 175773821552784
• 13257972 cubed (13257972³) is 2330404404479806794048
• The square root of 13257972 is 3641.1498183953
• The cube root of 13257972 is 236.6786222443

Scales and comparisons

• 13,257,972 seconds is equal to 21 weeks, 6 days, 10 hours, 46 minutes, 12 seconds.
• To count from 1 to 13,257,972 would take you about thirty-two weeks!

  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 13257972 cubic inches would be around 19.7 feet tall.

Recreational maths with 13257972

• 13257972 backwards is 27975231
• 13257972 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13257972's digits is 36
• More coming soon!