Search a number
-
+
28418327 = 74059761
BaseRepresentation
bin110110001101…
…0000100010111
31222110210121122
41230122010113
524233341302
62453034155
7463360160
oct154320427
958423548
1028418327
1115050123
12962595b
135b700a2
143aba767
1527653a2
hex1b1a117

28418327 has 4 divisors (see below), whose sum is σ = 32478096. Its totient is φ = 24358560.

The previous prime is 28418303. The next prime is 28418329. The reversal of 28418327 is 72381482.

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 28418327 - 26 = 28418263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28418329) 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, 2029874 + ... + 2029887.

It is an arithmetic number, because the mean of its divisors is an integer number (8119524).

Almost surely, 228418327 is an apocalyptic number.

28418327 is a deficient number, since it is larger than the sum of its proper divisors (4059769).

28418327 is an equidigital number, since it uses as much as digits as its factorization.

28418327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059768.

The product of its digits is 21504, while the sum is 35.

The square root of 28418327 is about 5330.8842606082. The cubic root of 28418327 is about 305.1636745797.

The spelling of 28418327 in words is "twenty-eight million, four hundred eighteen thousand, three hundred twenty-seven".

Divisors: 1 7 4059761 28418327