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128182142111 = 673239979393
BaseRepresentation
bin111011101100001000…
…0000100010010011111
3110020212020022111101212
41313120100010102133
54100004112021421
6134515220055035
712155321142062
oct1673020042237
9406766274355
10128182142111
114a3a8528641
1220a13b3447b
13c11a3a138a
1462bdca48d9
15350347de5b
hex1dd840449f

128182142111 has 8 divisors (see below), whose sum is σ = 128427734400. Its totient is φ = 127936714752.

The previous prime is 128182142071. The next prime is 128182142129. The reversal of 128182142111 is 111241281821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-128182142111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128182142131) 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 7 ways as a sum of consecutive naturals, for example, 1574831 + ... + 1654223.

It is an arithmetic number, because the mean of its divisors is an integer number (16053466800).

Almost surely, 2128182142111 is an apocalyptic number.

128182142111 is a deficient number, since it is larger than the sum of its proper divisors (245592289).

128182142111 is an equidigital number, since it uses as much as digits as its factorization.

128182142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82465.

The product of its digits is 2048, while the sum is 32.

The spelling of 128182142111 in words is "one hundred twenty-eight billion, one hundred eighty-two million, one hundred forty-two thousand, one hundred eleven".

Divisors: 1 673 2399 79393 1614527 53431489 190463807 128182142111