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214204331 = 11163193619
BaseRepresentation
bin11001100010001…
…11111110101011
3112221001201002202
430301013332223
5414314014311
633131050415
75210464265
oct1461077653
9487051082
10214204331
11aaa04980
125b8a0a0b
13354bb733
142063cb35
1513c12e3b
hexcc47fab

214204331 has 16 divisors (see below), whose sum is σ = 236711040. Its totient is φ = 192222720.

The previous prime is 214204307. The next prime is 214204339. The reversal of 214204331 is 133402412.

It is a cyclic number.

It is not a de Polignac number, because 214204331 - 210 = 214203307 is a prime.

It is a super-2 number, since 2×2142043312 = 91766990838315122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214204339) 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 15 ways as a sum of consecutive naturals, for example, 345740 + ... + 346358.

It is an arithmetic number, because the mean of its divisors is an integer number (14794440).

Almost surely, 2214204331 is an apocalyptic number.

214204331 is a deficient number, since it is larger than the sum of its proper divisors (22506709).

214204331 is a wasteful number, since it uses less digits than its factorization.

214204331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 214204331 is about 14635.7210618404. The cubic root of 214204331 is about 598.3327147431.

Adding to 214204331 its reverse (133402412), we get a palindrome (347606743).

The spelling of 214204331 in words is "two hundred fourteen million, two hundred four thousand, three hundred thirty-one".

Divisors: 1 11 163 193 619 1793 2123 6809 31459 100897 119467 346049 1109867 1314137 19473121 214204331