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214421333 = 730631619
BaseRepresentation
bin11001100011111…
…00111101010101
3112221110201202212
430301330331111
5414342440313
633135443205
75212360040
oct1461747525
9487421685
10214421333
11100042a15
125b986505
1335566439
1420697c57
1513c573a8
hexcc7cf55

214421333 has 4 divisors (see below), whose sum is σ = 245052960. Its totient is φ = 183789708.

The previous prime is 214421329. The next prime is 214421351. The reversal of 214421333 is 333124412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214421333 - 22 = 214421329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214421299 and 214421308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214421353) 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, 15315803 + ... + 15315816.

It is an arithmetic number, because the mean of its divisors is an integer number (61263240).

Almost surely, 2214421333 is an apocalyptic number.

It is an amenable number.

214421333 is a deficient number, since it is larger than the sum of its proper divisors (30631627).

214421333 is an equidigital number, since it uses as much as digits as its factorization.

214421333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30631626.

The product of its digits is 1728, while the sum is 23.

The square root of 214421333 is about 14643.1326224958. The cubic root of 214421333 is about 598.5346956815.

Adding to 214421333 its reverse (333124412), we get a palindrome (547545745).

The spelling of 214421333 in words is "two hundred fourteen million, four hundred twenty-one thousand, three hundred thirty-three".

Divisors: 1 7 30631619 214421333