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128282199 = 3215319861
BaseRepresentation
bin1111010010101…
…10111001010111
322221101102002120
413221112321113
5230320012244
620421311023
73115244403
oct751267127
9287342076
10128282199
1166459351
1236b65473
1320766936
1413074103
15b3de819
hex7a56e57

128282199 has 8 divisors (see below), whose sum is σ = 171130992. Its totient is φ = 85477440.

The previous prime is 128282191. The next prime is 128282237. The reversal of 128282199 is 991282821.

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

It is not a de Polignac number, because 128282199 - 23 = 128282191 is a prime.

It is a super-3 number, since 3×1282821993 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128282199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128282191) 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, 3472 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (21391374).

Almost surely, 2128282199 is an apocalyptic number.

128282199 is a deficient number, since it is larger than the sum of its proper divisors (42848793).

128282199 is a wasteful number, since it uses less digits than its factorization.

128282199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017.

The product of its digits is 41472, while the sum is 42.

The square root of 128282199 is about 11326.1731842666. The cubic root of 128282199 is about 504.3385110931.

The spelling of 128282199 in words is "one hundred twenty-eight million, two hundred eighty-two thousand, one hundred ninety-nine".

Divisors: 1 3 2153 6459 19861 59583 42760733 128282199