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224103997 = 1317238769
BaseRepresentation
bin11010101101110…
…00111000111101
3120121200122220001
431112320320331
5424332311442
634123154301
75360565265
oct1526707075
9517618801
10224103997
11105556717
1263075991
1337576720
1421a987a5
1514a1b2b7
hexd5b8e3d

224103997 has 4 divisors (see below), whose sum is σ = 241342780. Its totient is φ = 206865216.

The previous prime is 224103983. The next prime is 224104033. The reversal of 224103997 is 799301422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95531076 + 128572921 = 9774^2 + 11339^2 .

It is a cyclic number.

It is not a de Polignac number, because 224103997 - 215 = 224071229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224103907) 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, 8619372 + ... + 8619397.

It is an arithmetic number, because the mean of its divisors is an integer number (60335695).

Almost surely, 2224103997 is an apocalyptic number.

It is an amenable number.

224103997 is a deficient number, since it is larger than the sum of its proper divisors (17238783).

224103997 is a wasteful number, since it uses less digits than its factorization.

224103997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17238782.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 224103997 is about 14970.1034398564. The cubic root of 224103997 is about 607.4117667811.

The spelling of 224103997 in words is "two hundred twenty-four million, one hundred three thousand, nine hundred ninety-seven".

Divisors: 1 13 17238769 224103997