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128900675 = 5210947303
BaseRepresentation
bin1111010111011…
…01111001000011
322222112211111002
413223231321003
5230444310200
620442442215
73123431501
oct753557103
9288484432
10128900675
1166840a92
123720336b
13209222b7
1413195671
15b4b2bd5
hex7aede43

128900675 has 12 divisors (see below), whose sum is σ = 161306640. Its totient is φ = 102172320.

The previous prime is 128900659. The next prime is 128900701. The reversal of 128900675 is 576009821.

It is not a de Polignac number, because 128900675 - 24 = 128900659 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 20927 + ... + 26376.

It is an arithmetic number, because the mean of its divisors is an integer number (13442220).

Almost surely, 2128900675 is an apocalyptic number.

128900675 is a deficient number, since it is larger than the sum of its proper divisors (32405965).

128900675 is a wasteful number, since it uses less digits than its factorization.

128900675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47422 (or 47417 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 128900675 is about 11353.4433102914. The cubic root of 128900675 is about 505.1477200766.

The spelling of 128900675 in words is "one hundred twenty-eight million, nine hundred thousand, six hundred seventy-five".

Divisors: 1 5 25 109 545 2725 47303 236515 1182575 5156027 25780135 128900675