Search a number
-
+
28546308 = 22327113279
BaseRepresentation
bin110110011100…
…1010100000100
31222201022011200
41230321110010
524301440213
62455502500
7464432250
oct154712404
958638150
1028546308
111512829a
129687a30
135bb640b
143b11260
15278d273
hex1b39504

28546308 has 36 divisors (see below), whose sum is σ = 82467840. Its totient is φ = 8156016.

The previous prime is 28546307. The next prime is 28546333. The reversal of 28546308 is 80364582.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28546307) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 56388 + ... + 56891.

Almost surely, 228546308 is an apocalyptic number.

28546308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28546308 is an abundant number, since it is smaller than the sum of its proper divisors (53921532).

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

28546308 is a wasteful number, since it uses less digits than its factorization.

28546308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113296 (or 113291 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28546308 is about 5342.8745072292. The cubic root of 28546308 is about 305.6210868055.

The spelling of 28546308 in words is "twenty-eight million, five hundred forty-six thousand, three hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 113279 226558 339837 453116 679674 792953 1019511 1359348 1585906 2039022 2378859 3171812 4078044 4757718 7136577 9515436 14273154 28546308