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13311322231988 = 22117922716870019
BaseRepresentation
bin1100000110110100100010…
…1000100001010010110100
31202010112211221012112110002
43001231020220201102310
53221043041442410423
644151045332250432
72542465655042534
oct301551050412264
952115757175402
1013311322231988
114272333413510
1215ab9a6a70a18
137573383c4781
143403b2b574c4
151813d0d36228
hexc1b48a214b4

13311322231988 has 48 divisors (see below), whose sum is σ = 25847569843200. Its totient is φ = 5947693546080.

The previous prime is 13311322231981. The next prime is 13311322232071. The reversal of 13311322231988 is 88913222311331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311322231981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7645958 + ... + 9224061.

It is an arithmetic number, because the mean of its divisors is an integer number (538491038400).

Almost surely, 213311322231988 is an apocalyptic number.

It is an amenable number.

13311322231988 is a deficient number, since it is larger than the sum of its proper divisors (12536247611212).

13311322231988 is a wasteful number, since it uses less digits than its factorization.

13311322231988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16870340 (or 16870338 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The spelling of 13311322231988 in words is "thirteen trillion, three hundred eleven billion, three hundred twenty-two million, two hundred thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 22 44 79 158 227 316 454 869 908 1738 2497 3476 4994 9988 17933 35866 71732 197263 394526 789052 16870019 33740038 67480076 185570209 371140418 742280836 1332731501 2665463002 3829494313 5330926004 7658988626 14660046511 15317977252 29320093022 42124437443 58640186044 84248874886 168497749772 302530050727 605060101454 1210120202908 3327830557997 6655661115994 13311322231988