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13123133342 = 21131107179833
BaseRepresentation
bin11000011100011001…
…10001111110011110
31020212120111020122122
430032030301332132
5203334010231332
610010110142542
7643126535654
oct141614617636
936776436578
1013123133342
115624737350
122662ab1a52
131311a54b77
148c6c5cdd4
1551c175c12
hex30e331f9e

13123133342 has 32 divisors (see below), whose sum is σ = 22374226944. Its totient is φ = 5718657600.

The previous prime is 13123133339. The next prime is 13123133363. The reversal of 13123133342 is 24333132131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16943 + ... + 162890.

It is an arithmetic number, because the mean of its divisors is an integer number (699194592).

Almost surely, 213123133342 is an apocalyptic number.

13123133342 is a deficient number, since it is larger than the sum of its proper divisors (9251093602).

13123133342 is a wasteful number, since it uses less digits than its factorization.

13123133342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179984.

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

Adding to 13123133342 its reverse (24333132131), we get a palindrome (37456265473).

The spelling of 13123133342 in words is "thirteen billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred forty-two".

Divisors: 1 2 11 22 31 62 107 214 341 682 1177 2354 3317 6634 36487 72974 179833 359666 1978163 3956326 5574823 11149646 19242131 38484262 61323053 122646106 211663441 423326882 596506061 1193012122 6561566671 13123133342