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214451855 = 5172522963
BaseRepresentation
bin11001100100001…
…00011010001111
3112221112021122022
430302010122033
5414344424410
633140240355
75212545032
oct1462043217
9487467568
10214451855
11100063942
125b9a00bb
13355772b7
14206a5019
1513c61455
hexcc8468f

214451855 has 8 divisors (see below), whose sum is σ = 272480112. Its totient is φ = 161469568.

The previous prime is 214451813. The next prime is 214451873. The reversal of 214451855 is 558154412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214451855 - 212 = 214447759 is a prime.

It is a super-2 number, since 2×2144518552 = 91979196225882050, which contains 22 as substring.

It is a Duffinian 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, 1261397 + ... + 1261566.

It is an arithmetic number, because the mean of its divisors is an integer number (34060014).

Almost surely, 2214451855 is an apocalyptic number.

214451855 is a deficient number, since it is larger than the sum of its proper divisors (58028257).

214451855 is a wasteful number, since it uses less digits than its factorization.

214451855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522985.

The product of its digits is 32000, while the sum is 35.

The square root of 214451855 is about 14644.1747804374. The cubic root of 214451855 is about 598.5630939896.

The spelling of 214451855 in words is "two hundred fourteen million, four hundred fifty-one thousand, eight hundred fifty-five".

Divisors: 1 5 17 85 2522963 12614815 42890371 214451855