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214152231 = 371384077
BaseRepresentation
bin11001100001110…
…11010000100111
3112220222001122010
430300323100213
5414310332411
633130005303
75210156346
oct1460732047
9486861563
10214152231
11aa979817
125b876833
13354a0ac7
1420627b5d
1513c027a6
hexcc3b427

214152231 has 4 divisors (see below), whose sum is σ = 285536312. Its totient is φ = 142768152.

The previous prime is 214152229. The next prime is 214152271. The reversal of 214152231 is 132251412.

214152231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 214152231 - 21 = 214152229 is a prime.

It is a super-2 number, since 2×2141522312 = 91722356084554722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214152198 and 214152207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214152271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35692036 + ... + 35692041.

It is an arithmetic number, because the mean of its divisors is an integer number (71384078).

Almost surely, 2214152231 is an apocalyptic number.

214152231 is a deficient number, since it is larger than the sum of its proper divisors (71384081).

214152231 is an equidigital number, since it uses as much as digits as its factorization.

214152231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71384080.

The product of its digits is 480, while the sum is 21.

The square root of 214152231 is about 14633.9410617919. The cubic root of 214152231 is about 598.2842008436.

The spelling of 214152231 in words is "two hundred fourteen million, one hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 3 71384077 214152231