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28546105 = 572335461
BaseRepresentation
bin110110011100…
…1010000111001
31222201021220011
41230321100321
524301433410
62455501521
7464431540
oct154712071
958637804
1028546105
1115128125
1296878a1
135bb62b3
143b11157
15278d18a
hex1b39439

28546105 has 16 divisors (see below), whose sum is σ = 40852224. Its totient is φ = 18722880.

The previous prime is 28546103. The next prime is 28546123. The reversal of 28546105 is 50164582.

It is not a de Polignac number, because 28546105 - 21 = 28546103 is a prime.

It is a super-2 number, since 2×285461052 = 1629760221342050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28546103) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16926 + ... + 18535.

It is an arithmetic number, because the mean of its divisors is an integer number (2553264).

Almost surely, 228546105 is an apocalyptic number.

It is an amenable number.

28546105 is a deficient number, since it is larger than the sum of its proper divisors (12306119).

28546105 is a wasteful number, since it uses less digits than its factorization.

28546105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35496.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 28546105 is about 5342.8555099310. The cubic root of 28546105 is about 305.6203623542.

The spelling of 28546105 in words is "twenty-eight million, five hundred forty-six thousand, one hundred five".

Divisors: 1 5 7 23 35 115 161 805 35461 177305 248227 815603 1241135 4078015 5709221 28546105