Search a number
-
+
214430507 = 811126437
BaseRepresentation
bin11001100011111…
…11001100101011
3112221111012100122
430301333030223
5414343234012
633135553455
75212425554
oct1461771453
9487435318
10214430507
111000498a5
125b98b88b
133556a675
142069b32b
1513c59e72
hexcc7f32b

214430507 has 4 divisors (see below), whose sum is σ = 214465056. Its totient is φ = 214395960.

The previous prime is 214430471. The next prime is 214430509. The reversal of 214430507 is 705034412.

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 214430507 - 216 = 214364971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214430509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108 + ... + 21329.

It is an arithmetic number, because the mean of its divisors is an integer number (53616264).

Almost surely, 2214430507 is an apocalyptic number.

214430507 is a deficient number, since it is larger than the sum of its proper divisors (34549).

214430507 is an equidigital number, since it uses as much as digits as its factorization.

214430507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34548.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 214430507 is about 14643.4458717885. The cubic root of 214430507 is about 598.5432316465.

Adding to 214430507 its reverse (705034412), we get a palindrome (919464919).

The spelling of 214430507 in words is "two hundred fourteen million, four hundred thirty thousand, five hundred seven".

Divisors: 1 8111 26437 214430507