[go: up one dir, main page]

Search a number
-
+
28441283 = 132187791
BaseRepresentation
bin110110001111…
…1101011000011
31222111222002212
41230133223003
524240110113
62453332335
7463514123
oct154375303
958458085
1028441283
11150663a2
1296370ab
135b7a680
143ac4c83
15276c0a8
hex1b1fac3

28441283 has 4 divisors (see below), whose sum is σ = 30629088. Its totient is φ = 26253480.

The previous prime is 28441277. The next prime is 28441307. The reversal of 28441283 is 38214482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38214482 = 219107241.

It is a cyclic number.

It is not a de Polignac number, because 28441283 - 24 = 28441267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28441213) 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, 1093883 + ... + 1093908.

It is an arithmetic number, because the mean of its divisors is an integer number (7657272).

Almost surely, 228441283 is an apocalyptic number.

28441283 is a deficient number, since it is larger than the sum of its proper divisors (2187805).

28441283 is a wasteful number, since it uses less digits than its factorization.

28441283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187804.

The product of its digits is 12288, while the sum is 32.

The square root of 28441283 is about 5333.0369396808. The cubic root of 28441283 is about 305.2458217083.

The spelling of 28441283 in words is "twenty-eight million, four hundred forty-one thousand, two hundred eighty-three".

Divisors: 1 13 2187791 28441283