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128103863053 = 3723998314737
BaseRepresentation
bin111011101001110010…
…1011101001100001101
3110020122210000111201111
41313103211131030031
54044324042104203
6134503342212021
712153350604205
oct1672345351415
9406583014644
10128103863053
114a368322401
12209b1884011
13c1070c43ca
1462b3729405
1534eb66a26d
hex1dd395d30d

128103863053 has 16 divisors (see below), whose sum is σ = 132259991040. Its totient is φ = 123985403136.

The previous prime is 128103863033. The next prime is 128103863057. The reversal of 128103863053 is 350368301821.

It is a cyclic number.

It is not a de Polignac number, because 128103863053 - 221 = 128101765901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128103862997 and 128103863015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128103863057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8685301 + ... + 8700037.

It is an arithmetic number, because the mean of its divisors is an integer number (8266249440).

Almost surely, 2128103863053 is an apocalyptic number.

It is an amenable number.

128103863053 is a deficient number, since it is larger than the sum of its proper divisors (4156127987).

128103863053 is a wasteful number, since it uses less digits than its factorization.

128103863053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15996.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 128103863053 in words is "one hundred twenty-eight billion, one hundred three million, eight hundred sixty-three thousand, fifty-three".

Divisors: 1 37 239 983 8843 14737 36371 234937 545269 3522143 8692669 14486471 130319291 535999427 3462266569 128103863053