Search a number
-
+
22300231 = 47617769
BaseRepresentation
bin101010100010…
…0011001000111
31112221222011111
41111010121013
521202101411
62113545451
7360356152
oct125043107
945858144
1022300231
1111651548
127575287
13480a405
142d66c99
151e57721
hex1544647

22300231 has 8 divisors (see below), whose sum is σ = 22841280. Its totient is φ = 21762048.

The previous prime is 22300207. The next prime is 22300237. The reversal of 22300231 is 13200322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22300231 - 211 = 22298183 is a prime.

It is a super-2 number, since 2×223002312 = 994600605306722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22300237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28615 + ... + 29383.

It is an arithmetic number, because the mean of its divisors is an integer number (2855160).

Almost surely, 222300231 is an apocalyptic number.

22300231 is a deficient number, since it is larger than the sum of its proper divisors (541049).

22300231 is an equidigital number, since it uses as much as digits as its factorization.

22300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22300231 is about 4722.3120396687. The cubic root of 22300231 is about 281.4728133281.

Adding to 22300231 its reverse (13200322), we get a palindrome (35500553).

Subtracting from 22300231 its reverse (13200322), we obtain a palindrome (9099909).

The spelling of 22300231 in words is "twenty-two million, three hundred thousand, two hundred thirty-one".

Divisors: 1 47 617 769 28999 36143 474473 22300231