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214112231 = 1371562863
BaseRepresentation
bin11001100001100…
…01011111100111
3112220220000202122
430300301133213
5414303042411
633125100155
75206631624
oct1460613747
9486800678
10214112231
11aa951763
125b85765b
1335488838
142061734b
1513be59db
hexcc317e7

214112231 has 4 divisors (see below), whose sum is σ = 215675232. Its totient is φ = 212549232.

The previous prime is 214112219. The next prime is 214112233. The reversal of 214112231 is 132211412.

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

It is a cyclic number.

It is not a de Polignac number, because 214112231 - 26 = 214112167 is a prime.

It is a super-2 number, since 2×2141122312 = 91688094927594722, 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 (214112233) 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, 781295 + ... + 781568.

It is an arithmetic number, because the mean of its divisors is an integer number (53918808).

Almost surely, 2214112231 is an apocalyptic number.

214112231 is a deficient number, since it is larger than the sum of its proper divisors (1563001).

214112231 is a wasteful number, since it uses less digits than its factorization.

214112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563000.

The product of its digits is 96, while the sum is 17.

The square root of 214112231 is about 14632.5743121298. The cubic root of 214112231 is about 598.2469487480.

Adding to 214112231 its reverse (132211412), we get a palindrome (346323643).

The spelling of 214112231 in words is "two hundred fourteen million, one hundred twelve thousand, two hundred thirty-one".

Divisors: 1 137 1562863 214112231