Search a number
-
+
214784293 = 233921821
BaseRepresentation
bin11001100110101…
…01100100100101
3112222011011122211
430303111210211
5414441044133
633151323421
75215431163
oct1463254445
9488134584
10214784293
11100270689
125bb20571
13356626c9
1420750233
1513cc9bcd
hexccd5925

214784293 has 4 divisors (see below), whose sum is σ = 215706348. Its totient is φ = 213862240.

The previous prime is 214784291. The next prime is 214784309. The reversal of 214784293 is 392487412.

214784293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 126292644 + 88491649 = 11238^2 + 9407^2 .

It is a cyclic number.

It is not a de Polignac number, because 214784293 - 21 = 214784291 is a prime.

It is a super-2 number, since 2×2147842932 = 92264585039019698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214784291) 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, 460678 + ... + 461143.

It is an arithmetic number, because the mean of its divisors is an integer number (53926587).

Almost surely, 2214784293 is an apocalyptic number.

It is an amenable number.

214784293 is a deficient number, since it is larger than the sum of its proper divisors (922055).

214784293 is an equidigital number, since it uses as much as digits as its factorization.

214784293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922054.

The product of its digits is 96768, while the sum is 40.

The square root of 214784293 is about 14655.5209051060. The cubic root of 214784293 is about 598.8722269116.

The spelling of 214784293 in words is "two hundred fourteen million, seven hundred eighty-four thousand, two hundred ninety-three".

Divisors: 1 233 921821 214784293