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214502243 = 1712617779
BaseRepresentation
bin11001100100100…
…00101101100011
3112221121211202112
430302100231203
5414403032433
633141305535
75213144654
oct1462205543
9487554675
10214502243
1110009878a
125ba052ab
1335594207
14206b952b
1513c71348
hexcc90b63

214502243 has 4 divisors (see below), whose sum is σ = 227120040. Its totient is φ = 201884448.

The previous prime is 214502227. The next prime is 214502257. The reversal of 214502243 is 342205412.

It is a happy number.

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 214502243 - 24 = 214502227 is a prime.

It is a super-2 number, since 2×2145022432 = 92022424504062098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214502213) 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 3 ways as a sum of consecutive naturals, for example, 6308873 + ... + 6308906.

It is an arithmetic number, because the mean of its divisors is an integer number (56780010).

Almost surely, 2214502243 is an apocalyptic number.

214502243 is a deficient number, since it is larger than the sum of its proper divisors (12617797).

214502243 is a wasteful number, since it uses less digits than its factorization.

214502243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12617796.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 214502243 is about 14645.8950904340. The cubic root of 214502243 is about 598.6099701448.

Adding to 214502243 its reverse (342205412), we get a palindrome (556707655).

The spelling of 214502243 in words is "two hundred fourteen million, five hundred two thousand, two hundred forty-three".

Divisors: 1 17 12617779 214502243