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28363067 = 191492793
BaseRepresentation
bin110110000110…
…0100100111011
31222100222210222
41230030210323
524230104232
62451530255
7463040105
oct154144473
958328728
1028363067
1115012657
1295b998b
135b50ba5
143aa4575
152753d12
hex1b0c93b

28363067 has 4 divisors (see below), whose sum is σ = 29855880. Its totient is φ = 26870256.

The previous prime is 28363063. The next prime is 28363079. The reversal of 28363067 is 76036382.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28363067 - 22 = 28363063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28363061) 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 3 ways as a sum of consecutive naturals, for example, 746378 + ... + 746415.

It is an arithmetic number, because the mean of its divisors is an integer number (7463970).

Almost surely, 228363067 is an apocalyptic number.

28363067 is a deficient number, since it is larger than the sum of its proper divisors (1492813).

28363067 is a wasteful number, since it uses less digits than its factorization.

28363067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492812.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 28363067 is about 5325.6987334997. The cubic root of 28363067 is about 304.9657472956.

The spelling of 28363067 in words is "twenty-eight million, three hundred sixty-three thousand, sixty-seven".

Divisors: 1 19 1492793 28363067