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214004231 = 7671912389
BaseRepresentation
bin11001100000101…
…11001000000111
3112220200112121122
430300113020013
5414241113411
633122504155
75206002020
oct1460271007
9486615548
10214004231
11aa888601
125b80505b
133544b62c
14205c9c47
1513bc39db
hexcc17207

214004231 has 16 divisors (see below), whose sum is σ = 249630720. Its totient is φ = 179673120.

The previous prime is 214004227. The next prime is 214004237. The reversal of 214004231 is 132400412.

It is a cyclic number.

It is not a de Polignac number, because 214004231 - 22 = 214004227 is a prime.

It is a super-2 number, since 2×2140042312 = 91595621771802722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214004237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88385 + ... + 90773.

It is an arithmetic number, because the mean of its divisors is an integer number (15601920).

Almost surely, 2214004231 is an apocalyptic number.

214004231 is a deficient number, since it is larger than the sum of its proper divisors (35626489).

214004231 is a wasteful number, since it uses less digits than its factorization.

214004231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 214004231 is about 14628.8834502159. The cubic root of 214004231 is about 598.1463449095.

Adding to 214004231 its reverse (132400412), we get a palindrome (346404643).

The spelling of 214004231 in words is "two hundred fourteen million, four thousand, two hundred thirty-one".

Divisors: 1 7 67 191 469 1337 2389 12797 16723 89579 160063 456299 1120441 3194093 30572033 214004231