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214643252 = 22505910607
BaseRepresentation
bin11001100101100…
…11001000110100
3112221220000012002
430302303020310
5414422041002
633144314432
75214303035
oct1462631064
9487800162
10214643252
1110018471a
125ba72a18
1335613455
1420714a8c
1513c9d002
hexccb3234

214643252 has 12 divisors (see below), whose sum is σ = 375735360. Its totient is φ = 107290296.

The previous prime is 214643251. The next prime is 214643267. The reversal of 214643252 is 252346412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214643251) 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, 14933 + ... + 25539.

It is an arithmetic number, because the mean of its divisors is an integer number (31311280).

Almost surely, 2214643252 is an apocalyptic number.

It is an amenable number.

214643252 is a deficient number, since it is larger than the sum of its proper divisors (161092108).

214643252 is a wasteful number, since it uses less digits than its factorization.

214643252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15670 (or 15668 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 214643252 is about 14650.7082422660. The cubic root of 214643252 is about 598.7411123690.

Adding to 214643252 its reverse (252346412), we get a palindrome (466989664).

The spelling of 214643252 in words is "two hundred fourteen million, six hundred forty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 5059 10118 10607 20236 21214 42428 53660813 107321626 214643252