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13031323031222 = 29765166723961
BaseRepresentation
bin1011110110100001011101…
…1000010101011010110110
31201010210010022022101021222
42331220113120111122312
53202001122143444342
643414301313510342
72513324222103206
oct275502730253266
951123108271258
1013031323031222
11417460a141761
1215656838723b2
13736b05190512
14330a10068406
15178e944eeed2
hexbda176156b6

13031323031222 has 8 divisors (see below), whose sum is σ = 19547185011672. Its totient is φ = 6515594694000.

The previous prime is 13031323031179. The next prime is 13031323031249. The reversal of 13031323031222 is 22213032313031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13031323031191 and 13031323031200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33166679 + ... + 33557282.

It is an arithmetic number, because the mean of its divisors is an integer number (2443398126459).

Almost surely, 213031323031222 is an apocalyptic number.

13031323031222 is a deficient number, since it is larger than the sum of its proper divisors (6515861980450).

13031323031222 is an equidigital number, since it uses as much as digits as its factorization.

13031323031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66821614.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13031323031222 its reverse (22213032313031), we get a palindrome (35244355344253).

The spelling of 13031323031222 in words is "thirteen trillion, thirty-one billion, three hundred twenty-three million, thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 97651 195302 66723961 133447922 6515661515611 13031323031222