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13021233223 = 791491106213
BaseRepresentation
bin11000010000010000…
…00100000001000111
31020121110202011222011
430020020010001013
5203131413430343
65552030115051
7640451441035
oct141010040107
936543664864
1013021233223
115582168279
12263494ba87
1312c68c753b
148b74d5555
1551324829d
hex308204047

13021233223 has 8 divisors (see below), whose sum is σ = 13274568000. Its totient is φ = 12770111328.

The previous prime is 13021233209. The next prime is 13021233233. The reversal of 13021233223 is 32233212031.

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

It is a cyclic number.

It is not a de Polignac number, because 13021233223 - 25 = 13021233191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021233194 and 13021233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021233233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541336 + ... + 564877.

It is an arithmetic number, because the mean of its divisors is an integer number (1659321000).

Almost surely, 213021233223 is an apocalyptic number.

13021233223 is a deficient number, since it is larger than the sum of its proper divisors (253334777).

13021233223 is a wasteful number, since it uses less digits than its factorization.

13021233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106441.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13021233223 its reverse (32233212031), we get a palindrome (45254445254).

The spelling of 13021233223 in words is "thirteen billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty-three".

Divisors: 1 79 149 11771 1106213 87390827 164825737 13021233223