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128448214 = 2297121617
BaseRepresentation
bin1111010011111…
…11011011010110
322221200211211021
413221333123112
5230340320324
620425031354
73116535406
oct751773326
9287624737
10128448214
1166562054
123702555a
13207c437b
14130b8806
15b423ae4
hex7a7f6d6

128448214 has 8 divisors (see below), whose sum is σ = 192746088. Its totient is φ = 64199520.

The previous prime is 128448211. The next prime is 128448241. The reversal of 128448214 is 412844821.

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

It is a self number, because there is not a number n which added to its sum of digits gives 128448214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128448211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4867 + ... + 16750.

It is an arithmetic number, because the mean of its divisors is an integer number (24093261).

Almost surely, 2128448214 is an apocalyptic number.

128448214 is a deficient number, since it is larger than the sum of its proper divisors (64297874).

128448214 is a wasteful number, since it uses less digits than its factorization.

128448214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24590.

The product of its digits is 16384, while the sum is 34.

The square root of 128448214 is about 11333.4996360348. The cubic root of 128448214 is about 504.5559786921. Note that the first 3 decimals are identical.

The spelling of 128448214 in words is "one hundred twenty-eight million, four hundred forty-eight thousand, two hundred fourteen".

Divisors: 1 2 2971 5942 21617 43234 64224107 128448214