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128490483 = 311191012029
BaseRepresentation
bin1111010100010…
…01101111110011
322221202222210210
413222021233303
5230343143413
620425555203
73120102552
oct752115763
9287688723
10128490483
1166590890
1237045b03
132080a694
14130c9d99
15b4313c3
hex7a89bf3

128490483 has 32 divisors (see below), whose sum is σ = 198777600. Its totient is φ = 73008000.

The previous prime is 128490451. The next prime is 128490499. The reversal of 128490483 is 384094821.

It is not a de Polignac number, because 128490483 - 25 = 128490451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128490083) 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 31 ways as a sum of consecutive naturals, for example, 62313 + ... + 64341.

It is an arithmetic number, because the mean of its divisors is an integer number (6211800).

Almost surely, 2128490483 is an apocalyptic number.

128490483 is a deficient number, since it is larger than the sum of its proper divisors (70287117).

128490483 is a wasteful number, since it uses less digits than its factorization.

128490483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 128490483 is about 11335.3642641073. The cubic root of 128490483 is about 504.6113180828.

The spelling of 128490483 in words is "one hundred twenty-eight million, four hundred ninety thousand, four hundred eighty-three".

Divisors: 1 3 11 19 33 57 101 209 303 627 1111 1919 2029 3333 5757 6087 21109 22319 38551 63327 66957 115653 204929 424061 614787 1272183 2254219 3893651 6762657 11680953 42830161 128490483