Search a number
-
+
28214363 = 37097607
BaseRepresentation
bin110101110100…
…0010001011011
31222002102211102
41223220101123
524210324423
62444422015
7461550422
oct153502133
958072742
1028214363
1114a20961
12954790b
135acb2b8
143a662b9
152724c28
hex1ae845b

28214363 has 4 divisors (see below), whose sum is σ = 28225680. Its totient is φ = 28203048.

The previous prime is 28214357. The next prime is 28214369. The reversal of 28214363 is 36341282.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36341282 = 218170641.

It is an interprime number because it is at equal distance from previous prime (28214357) and next prime (28214369).

It is a cyclic number.

It is not a de Polignac number, because 28214363 - 26 = 28214299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28214369) 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, 95 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (7056420).

Almost surely, 228214363 is an apocalyptic number.

28214363 is a deficient number, since it is larger than the sum of its proper divisors (11317).

28214363 is an equidigital number, since it uses as much as digits as its factorization.

28214363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11316.

The product of its digits is 6912, while the sum is 29.

The square root of 28214363 is about 5311.7194014744. The cubic root of 28214363 is about 304.4318474383.

The spelling of 28214363 in words is "twenty-eight million, two hundred fourteen thousand, three hundred sixty-three".

Divisors: 1 3709 7607 28214363