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214443254 = 21514991423
BaseRepresentation
bin11001100100000…
…10010011110110
3112221111211211202
430302002103312
5414344141004
633140132502
75212510664
oct1462022366
9487454752
10214443254
11100058433
125b997132
13355733cc
14206a1c34
1513c5db1e
hexcc824f6

214443254 has 16 divisors (see below), whose sum is σ = 324672000. Its totient is φ = 106223400.

The previous prime is 214443179. The next prime is 214443263. The reversal of 214443254 is 452344412.

It is a super-2 number, since 2×2144432542 = 91971818372217032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 149987 + ... + 151409.

It is an arithmetic number, because the mean of its divisors is an integer number (20292000).

Almost surely, 2214443254 is an apocalyptic number.

214443254 is a deficient number, since it is larger than the sum of its proper divisors (110228746).

214443254 is a wasteful number, since it uses less digits than its factorization.

214443254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its digits is 15360, while the sum is 29.

The square root of 214443254 is about 14643.8811112355. The cubic root of 214443254 is about 598.5550917118. Note that the first 3 decimals are identical.

Adding to 214443254 its reverse (452344412), we get a palindrome (666787666).

The spelling of 214443254 in words is "two hundred fourteen million, four hundred forty-three thousand, two hundred fifty-four".

Divisors: 1 2 151 302 499 998 1423 2846 75349 150698 214873 429746 710077 1420154 107221627 214443254