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214897 = 1712641
BaseRepresentation
bin110100011101110001
3101220210011
4310131301
523334042
64334521
71553344
oct643561
9356704
10214897
11137501
12a4441
1376a77
145845b
1543a17
hex34771

214897 has 4 divisors (see below), whose sum is σ = 227556. Its totient is φ = 202240.

The previous prime is 214891. The next prime is 214913. The reversal of 214897 is 798412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58081 + 156816 = 241^2 + 396^2 .

It is a cyclic number.

It is not a de Polignac number, because 214897 - 215 = 182129 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (214891) 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, 6304 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (56889).

2214897 is an apocalyptic number.

It is an amenable number.

214897 is a deficient number, since it is larger than the sum of its proper divisors (12659).

214897 is a wasteful number, since it uses less digits than its factorization.

214897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12658.

The product of its digits is 4032, while the sum is 31.

The square root of 214897 is about 463.5698437129. The cubic root of 214897 is about 59.8976960345.

It can be divided in two parts, 214 and 897, that added together give a palindrome (1111).

The spelling of 214897 in words is "two hundred fourteen thousand, eight hundred ninety-seven".

Divisors: 1 17 12641 214897