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128914 = 2431499
BaseRepresentation
bin11111011110010010
320112211121
4133132102
513111124
62432454
71044562
oct373622
9215747
10128914
1188945
126272a
13468a6
1434da2
15282e4
hex1f792

128914 has 8 divisors (see below), whose sum is σ = 198000. Its totient is φ = 62916.

The previous prime is 128903. The next prime is 128923. The reversal of 128914 is 419821.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664 + ... + 835.

It is an arithmetic number, because the mean of its divisors is an integer number (24750).

2128914 is an apocalyptic number.

128914 is a deficient number, since it is larger than the sum of its proper divisors (69086).

128914 is a wasteful number, since it uses less digits than its factorization.

128914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544.

The product of its digits is 576, while the sum is 25.

The square root of 128914 is about 359.0459580611. The cubic root of 128914 is about 50.5165125885.

The spelling of 128914 in words is "one hundred twenty-eight thousand, nine hundred fourteen".

Divisors: 1 2 43 86 1499 2998 64457 128914