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214030431 = 342642351
BaseRepresentation
bin11001100000111…
…01100001011111
3112220201212120000
430300131201133
5414242433211
633123225343
75206141266
oct1460354137
9486655500
10214030431
11aa8a625a
125b818253
133545a534
14205d55dd
1513bcb656
hexcc1d85f

214030431 has 10 divisors (see below), whose sum is σ = 319724592. Its totient is φ = 142686900.

The previous prime is 214030409. The next prime is 214030441. The reversal of 214030431 is 134030412.

It is not a de Polignac number, because 214030431 - 222 = 209836127 is a prime.

It is a super-2 number, since 2×2140304312 = 91618050788091522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214030441) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1321095 + ... + 1321256.

Almost surely, 2214030431 is an apocalyptic number.

214030431 is a deficient number, since it is larger than the sum of its proper divisors (105694161).

214030431 is an equidigital number, since it uses as much as digits as its factorization.

214030431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642363 (or 2642354 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 214030431 is about 14629.7789115215. The cubic root of 214030431 is about 598.1707537645.

Adding to 214030431 its reverse (134030412), we get a palindrome (348060843).

The spelling of 214030431 in words is "two hundred fourteen million, thirty thousand, four hundred thirty-one".

Divisors: 1 3 9 27 81 2642351 7927053 23781159 71343477 214030431