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224215153 = 2937208961
BaseRepresentation
bin11010101110101…
…00000001110001
3120121220022100221
431113110001301
5424344341103
634125413041
75361540331
oct1527240161
9517808327
10224215153
11105622188
126310a181
13375b51b6
1421ac70c1
1514a3e1bd
hexd5d4071

224215153 has 8 divisors (see below), whose sum is σ = 238216680. Its totient is φ = 210631680.

The previous prime is 224215151. The next prime is 224215177. The reversal of 224215153 is 351512422.

It can be written as a sum of positive squares in 4 ways, for example, as 143808064 + 80407089 = 11992^2 + 8967^2 .

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 224215153 - 21 = 224215151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224215151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103408 + ... + 105553.

It is an arithmetic number, because the mean of its divisors is an integer number (29777085).

Almost surely, 2224215153 is an apocalyptic number.

It is an amenable number.

224215153 is a deficient number, since it is larger than the sum of its proper divisors (14001527).

224215153 is a wasteful number, since it uses less digits than its factorization.

224215153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209027.

The product of its digits is 2400, while the sum is 25.

The square root of 224215153 is about 14973.8155792036. The cubic root of 224215153 is about 607.5121759712.

Adding to 224215153 its reverse (351512422), we get a palindrome (575727575).

The spelling of 224215153 in words is "two hundred twenty-four million, two hundred fifteen thousand, one hundred fifty-three".

Divisors: 1 29 37 1073 208961 6059869 7731557 224215153