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214547057 = 474564831
BaseRepresentation
bin11001100100110…
…11101001110001
3112221201010020022
430302123221301
5414411001212
633142253225
75213422424
oct1462335161
9487633208
10214547057
1110011941a
125ba27215
13355ab72a
14206cb9bb
1513c7e772
hexcc9ba71

214547057 has 4 divisors (see below), whose sum is σ = 219111936. Its totient is φ = 209982180.

The previous prime is 214547051. The next prime is 214547077. The reversal of 214547057 is 750745412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214547057 - 24 = 214547041 is a prime.

It is a super-2 number, since 2×2145470572 = 92060879334722498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214547051) 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, 2282369 + ... + 2282462.

It is an arithmetic number, because the mean of its divisors is an integer number (54777984).

Almost surely, 2214547057 is an apocalyptic number.

It is an amenable number.

214547057 is a deficient number, since it is larger than the sum of its proper divisors (4564879).

214547057 is an equidigital number, since it uses as much as digits as its factorization.

214547057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564878.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 214547057 is about 14647.4249272696. The cubic root of 214547057 is about 598.6516546184.

The spelling of 214547057 in words is "two hundred fourteen million, five hundred forty-seven thousand, fifty-seven".

Divisors: 1 47 4564831 214547057