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224897431 = 1121619461
BaseRepresentation
bin11010110011110…
…10100110010111
3120200011222021111
431121322212113
5430033204211
634152155451
75400411433
oct1531724627
9520158244
10224897431
11105a48850
1263398b87
1337793905
1421c239c3
1514b26421
hexd67a997

224897431 has 8 divisors (see below), whose sum is σ = 245482128. Its totient is φ = 204336000.

The previous prime is 224897417. The next prime is 224897441. The reversal of 224897431 is 134798422.

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

It is not a de Polignac number, because 224897431 - 225 = 191342999 is a prime.

It is a super-2 number, since 2×2248974312 = 101157708940799522, 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 (224897401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19041 + ... + 28501.

It is an arithmetic number, because the mean of its divisors is an integer number (30685266).

Almost surely, 2224897431 is an apocalyptic number.

224897431 is a deficient number, since it is larger than the sum of its proper divisors (20584697).

224897431 is a wasteful number, since it uses less digits than its factorization.

224897431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11633.

The product of its digits is 96768, while the sum is 40.

The square root of 224897431 is about 14996.5806436001. The cubic root of 224897431 is about 608.1277639727.

Subtracting from 224897431 its reverse (134798422), we obtain a palindrome (90099009).

The spelling of 224897431 in words is "two hundred twenty-four million, eight hundred ninety-seven thousand, four hundred thirty-one".

Divisors: 1 11 2161 9461 23771 104071 20445221 224897431