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28325049 = 314963367
BaseRepresentation
bin110110000001…
…1010010111001
31222022001122220
41230003102321
524222400144
62451034253
7462521214
oct154032271
958261586
1028325049
1114a97035
12959b989
135b397ac
143a9477b
152747919
hex1b034b9

28325049 has 8 divisors (see below), whose sum is σ = 38020800. Its totient is φ = 18756336.

The previous prime is 28325027. The next prime is 28325053. The reversal of 28325049 is 94052382.

It is a happy number.

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

It is not a de Polignac number, because 28325049 - 27 = 28324921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28325249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31237 + ... + 32130.

It is an arithmetic number, because the mean of its divisors is an integer number (4752600).

Almost surely, 228325049 is an apocalyptic number.

It is an amenable number.

28325049 is a deficient number, since it is larger than the sum of its proper divisors (9695751).

28325049 is a wasteful number, since it uses less digits than its factorization.

28325049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63519.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28325049 is about 5322.1282397176. The cubic root of 28325049 is about 304.8294271538.

The spelling of 28325049 in words is "twenty-eight million, three hundred twenty-five thousand, forty-nine".

Divisors: 1 3 149 447 63367 190101 9441683 28325049