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28316343 = 3115931447
BaseRepresentation
bin110110000000…
…1001010110111
31222021121201110
41230001022313
524222110333
62450530103
7462453636
oct154011267
958247643
1028316343
1114a90540
129596933
135b35843
143a9151d
152745063
hex1b012b7

28316343 has 16 divisors (see below), whose sum is σ = 41285376. Its totient is φ = 17120640.

The previous prime is 28316341. The next prime is 28316371. The reversal of 28316343 is 34361382.

It is not a de Polignac number, because 28316343 - 21 = 28316341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28316343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316341) 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, 18846 + ... + 20292.

It is an arithmetic number, because the mean of its divisors is an integer number (2580336).

Almost surely, 228316343 is an apocalyptic number.

28316343 is a deficient number, since it is larger than the sum of its proper divisors (12969033).

28316343 is a wasteful number, since it uses less digits than its factorization.

28316343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054.

The product of its digits is 10368, while the sum is 30.

The square root of 28316343 is about 5321.3102709765. The cubic root of 28316343 is about 304.7981931162.

The spelling of 28316343 in words is "twenty-eight million, three hundred sixteen thousand, three hundred forty-three".

Divisors: 1 3 11 33 593 1447 1779 4341 6523 15917 19569 47751 858071 2574213 9438781 28316343