Search a number
-
+
214242487 is a prime number
BaseRepresentation
bin11001100010100…
…01010010110111
3112221010122102221
430301101102313
5414321224422
633131543211
75211013444
oct1461212267
9487118387
10214242487
11aaa30608
125b8bab07
1335502c04
142064c9cb
1513c1e3c7
hexcc514b7

214242487 has 2 divisors, whose sum is σ = 214242488. Its totient is φ = 214242486.

The previous prime is 214242439. The next prime is 214242521. The reversal of 214242487 is 784242412.

214242487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (214242521) can be obtained adding 214242487 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214242487 - 27 = 214242359 is a prime.

It is a super-3 number, since 3×2142424873 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214245487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107121243 + 107121244.

It is an arithmetic number, because the mean of its divisors is an integer number (107121244).

Almost surely, 2214242487 is an apocalyptic number.

214242487 is a deficient number, since it is larger than the sum of its proper divisors (1).

214242487 is an equidigital number, since it uses as much as digits as its factorization.

214242487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 34.

The square root of 214242487 is about 14637.0245268634. The cubic root of 214242487 is about 598.3682394335.

Adding to 214242487 its reverse (784242412), we get a palindrome (998484899).

The spelling of 214242487 in words is "two hundred fourteen million, two hundred forty-two thousand, four hundred eighty-seven".