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12667716831490 = 2576710924779869
BaseRepresentation
bin1011100001010110111011…
…0000110000100100000010
31122212000120222002121202121
42320111232300300210002
53130021441002101430
642535245131034454
72445132555310150
oct270255660604402
948760528077677
1012667716831490
1140443919a5146
12150710889ba2a
1370b739763746
1431b19954c3d0
1516e7b2c04a7a
hexb856ec30902

12667716831490 has 64 divisors (see below), whose sum is σ = 26690893574400. Its totient is φ = 4239141578496.

The previous prime is 12667716831463. The next prime is 12667716831509. The reversal of 12667716831490 is 9413861776621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11878725 + ... + 12901144.

It is an arithmetic number, because the mean of its divisors is an integer number (417045212100).

Almost surely, 212667716831490 is an apocalyptic number.

12667716831490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12667716831490 is an abundant number, since it is smaller than the sum of its proper divisors (14023176742910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12667716831490 is a wasteful number, since it uses less digits than its factorization.

12667716831490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24780059.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 12667716831490 in words is "twelve trillion, six hundred sixty-seven billion, seven hundred sixteen million, eight hundred thirty-one thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 67 70 109 134 218 335 469 545 670 763 938 1090 1526 2345 3815 4690 7303 7630 14606 36515 51121 73030 102242 255605 511210 24779869 49559738 123899345 173459083 247798690 346918166 867295415 1660251223 1734590830 2701005721 3320502446 5402011442 8301256115 11621758561 13505028605 16602512230 18907040047 23243517122 27010057210 37814080094 58108792805 94535200235 116217585610 180967383307 189070400470 361934766614 904836916535 1266771683149 1809673833070 2533543366298 6333858415745 12667716831490