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28396383 = 343251877
BaseRepresentation
bin110110001010…
…0101101011111
31222102200111220
41230110231133
524232141013
62452344423
7463236201
oct154245537
958380456
1028396383
1115035694
129615113
135b630c2
143ab2771
15275db23
hex1b14b5f

28396383 has 16 divisors (see below), whose sum is σ = 38941056. Its totient is φ = 18396000.

The previous prime is 28396369. The next prime is 28396387. The reversal of 28396383 is 38369382.

It is not a de Polignac number, because 28396383 - 25 = 28396351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28396387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31941 + ... + 32817.

It is an arithmetic number, because the mean of its divisors is an integer number (2433816).

Almost surely, 228396383 is an apocalyptic number.

28396383 is a deficient number, since it is larger than the sum of its proper divisors (10544673).

28396383 is a wasteful number, since it uses less digits than its factorization.

28396383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174.

The product of its digits is 186624, while the sum is 42.

The square root of 28396383 is about 5328.8256680060. The cubic root of 28396383 is about 305.0851074864.

The spelling of 28396383 in words is "twenty-eight million, three hundred ninety-six thousand, three hundred eighty-three".

Divisors: 1 3 43 129 251 753 877 2631 10793 32379 37711 113133 220127 660381 9465461 28396383