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224224031 = 947236773
BaseRepresentation
bin11010101110101…
…10001100011111
3120121220202112202
431113112030133
5424400132111
634125522115
75361605243
oct1527261437
9517822482
10224224031
11105628919
126311333b
13375b9255
1421aca423
1514a41b3b
hexd5d631f

224224031 has 4 divisors (see below), whose sum is σ = 224461752. Its totient is φ = 223986312.

The previous prime is 224223943. The next prime is 224224051. The reversal of 224224031 is 130422422.

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 224224031 - 222 = 220029727 is a prime.

It is a super-2 number, since 2×2242240312 = 100552832155777922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224223994 and 224224012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224224051) 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 3 ways as a sum of consecutive naturals, for example, 117440 + ... + 119333.

It is an arithmetic number, because the mean of its divisors is an integer number (56115438).

Almost surely, 2224224031 is an apocalyptic number.

224224031 is a deficient number, since it is larger than the sum of its proper divisors (237721).

224224031 is an equidigital number, since it uses as much as digits as its factorization.

224224031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237720.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 224224031 is about 14974.1120270953. The cubic root of 224224031 is about 607.5201941951.

Adding to 224224031 its reverse (130422422), we get a palindrome (354646453).

The spelling of 224224031 in words is "two hundred twenty-four million, two hundred twenty-four thousand, thirty-one".

Divisors: 1 947 236773 224224031