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214321252 = 22299471951
BaseRepresentation
bin11001100011001…
…00100001100100
3112221021122111011
430301210201210
5414331240002
633133352004
75211462205
oct1461444144
9487248434
10214321252
11aaa84802
125b938604
133552ca12
142066d5ac
1513c378d7
hexcc64864

214321252 has 24 divisors (see below), whose sum is σ = 388604160. Its totient is φ = 103303200.

The previous prime is 214321231. The next prime is 214321253. The reversal of 214321252 is 252123412.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (214321253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108877 + ... + 110827.

It is an arithmetic number, because the mean of its divisors is an integer number (16191840).

Almost surely, 2214321252 is an apocalyptic number.

It is an amenable number.

214321252 is a deficient number, since it is larger than the sum of its proper divisors (174282908).

214321252 is a wasteful number, since it uses less digits than its factorization.

214321252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931 (or 2929 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 214321252 is about 14639.7148879341. The cubic root of 214321252 is about 598.4415593127.

Adding to 214321252 its reverse (252123412), we get a palindrome (466444664).

The spelling of 214321252 in words is "two hundred fourteen million, three hundred twenty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 29 58 116 947 1894 1951 3788 3902 7804 27463 54926 56579 109852 113158 226316 1847597 3695194 7390388 53580313 107160626 214321252