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214457213 = 703930467
BaseRepresentation
bin11001100100001…
…01101101111101
3112221112112222202
430302011231331
5414400112323
633140321245
75212566455
oct1462055575
9487475882
10214457213
11100067973
125b9a3225
1335579879
14206a6d65
1513c62d28
hexcc85b7d

214457213 has 4 divisors (see below), whose sum is σ = 214494720. Its totient is φ = 214419708.

The previous prime is 214457179. The next prime is 214457231. The reversal of 214457213 is 312754412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214457213 - 26 = 214457149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214457263) 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, 8195 + ... + 22272.

It is an arithmetic number, because the mean of its divisors is an integer number (53623680).

Almost surely, 2214457213 is an apocalyptic number.

It is an amenable number.

214457213 is a deficient number, since it is larger than the sum of its proper divisors (37507).

214457213 is an equidigital number, since it uses as much as digits as its factorization.

214457213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37506.

The product of its digits is 6720, while the sum is 29.

The square root of 214457213 is about 14644.3577189305. The cubic root of 214457213 is about 598.5680789070.

The spelling of 214457213 in words is "two hundred fourteen million, four hundred fifty-seven thousand, two hundred thirteen".

Divisors: 1 7039 30467 214457213