Search a number
-
+
214018897 = 691730941
BaseRepresentation
bin11001100000110…
…10101101010001
3112220201021201211
430300122231101
5414242101042
633123100121
75206062541
oct1460325521
9486637654
10214018897
11aa898624
125b811641
1335455201
14205d1321
1513bc8017
hexcc1ab51

214018897 has 4 divisors (see below), whose sum is σ = 214056756. Its totient is φ = 213981040.

The previous prime is 214018867. The next prime is 214018919. The reversal of 214018897 is 798810412.

It is a happy number.

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 99121936 + 114896961 = 9956^2 + 10719^2 .

It is a cyclic number.

It is not a de Polignac number, because 214018897 - 219 = 213494609 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214018807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8554 + ... + 22387.

It is an arithmetic number, because the mean of its divisors is an integer number (53514189).

Almost surely, 2214018897 is an apocalyptic number.

It is an amenable number.

214018897 is a deficient number, since it is larger than the sum of its proper divisors (37859).

214018897 is an equidigital number, since it uses as much as digits as its factorization.

214018897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37858.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 214018897 is about 14629.3847102330. The cubic root of 214018897 is about 598.1600085240.

The spelling of 214018897 in words is "two hundred fourteen million, eighteen thousand, eight hundred ninety-seven".

Divisors: 1 6917 30941 214018897