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128252795107 = 313910345013
BaseRepresentation
bin111011101110001110…
…1100101100011100011
3110021001011021001002111
41313130131211203203
54100130203420412
6134530222300151
712160136525353
oct1673435454343
9407034231074
10128252795107
114a4343a5248
1220a33727657
13c12bc0b198
1462c9416b63
1535097882a7
hex1ddc7658e3

128252795107 has 8 divisors (see below), whose sum is σ = 128679541184. Its totient is φ = 127826157888.

The previous prime is 128252795101. The next prime is 128252795113. The reversal of 128252795107 is 701597252821.

It is an interprime number because it is at equal distance from previous prime (128252795101) and next prime (128252795113).

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 128252795107 - 211 = 128252793059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128252795101) 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, 2826733 + ... + 2871745.

It is an arithmetic number, because the mean of its divisors is an integer number (16084942648).

Almost surely, 2128252795107 is an apocalyptic number.

128252795107 is a deficient number, since it is larger than the sum of its proper divisors (426746077).

128252795107 is an equidigital number, since it uses as much as digits as its factorization.

128252795107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54429.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 128252795107 in words is "one hundred twenty-eight billion, two hundred fifty-two million, seven hundred ninety-five thousand, one hundred seven".

Divisors: 1 313 9103 45013 2849239 14089069 409753339 128252795107