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128434314 = 2371301489
BaseRepresentation
bin1111010011111…
…00000010001010
322221200010202110
413221330002022
5230334344224
620424443150
73116450031
oct751740212
9287603673
10128434314
1166552668
12370194b6
13207bac48
14130b3718
15b41e929
hex7a7c08a

128434314 has 16 divisors (see below), whose sum is σ = 260487360. Its totient is φ = 42208320.

The previous prime is 128434291. The next prime is 128434343. The reversal of 128434314 is 413434821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150319 + ... + 151170.

It is an arithmetic number, because the mean of its divisors is an integer number (16280460).

Almost surely, 2128434314 is an apocalyptic number.

128434314 is an abundant number, since it is smaller than the sum of its proper divisors (132053046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128434314 is a wasteful number, since it uses less digits than its factorization.

128434314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301565.

The product of its digits is 9216, while the sum is 30.

The square root of 128434314 is about 11332.8863931480. The cubic root of 128434314 is about 504.5377778912.

The spelling of 128434314 in words is "one hundred twenty-eight million, four hundred thirty-four thousand, three hundred fourteen".

Divisors: 1 2 3 6 71 142 213 426 301489 602978 904467 1808934 21405719 42811438 64217157 128434314