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28967395 = 55793479
BaseRepresentation
bin110111010000…
…0000111100011
32000111200210111
41232200013203
524403424040
62512512151
7501135022
oct156400743
960450714
1028967395
11153956a6
12984b657
136002c92
143bc08b9
152822dea
hex1ba01e3

28967395 has 4 divisors (see below), whose sum is σ = 34760880. Its totient is φ = 23173912.

The previous prime is 28967377. The next prime is 28967399. The reversal of 28967395 is 59376982.

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

It is a cyclic number.

It is not a de Polignac number, because 28967395 - 25 = 28967363 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28967399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2896735 + ... + 2896744.

It is an arithmetic number, because the mean of its divisors is an integer number (8690220).

Almost surely, 228967395 is an apocalyptic number.

28967395 is a deficient number, since it is larger than the sum of its proper divisors (5793485).

28967395 is an equidigital number, since it uses as much as digits as its factorization.

28967395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793484.

The product of its digits is 816480, while the sum is 49.

The square root of 28967395 is about 5382.1366574995. The cubic root of 28967395 is about 307.1164981371.

The spelling of 28967395 in words is "twenty-eight million, nine hundred sixty-seven thousand, three hundred ninety-five".

Divisors: 1 5 5793479 28967395