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214556871 = 3149677709
BaseRepresentation
bin11001100100111…
…10000011000111
3112221201121200210
430302132003013
5414411304441
633142410503
75213463144
oct1462360307
9487647623
10214556871
11100125831
125ba30a33
13355b3039
14206d13cb
1513c82616
hexcc9e0c7

214556871 has 16 divisors (see below), whose sum is σ = 288828000. Its totient is φ = 141667968.

The previous prime is 214556869. The next prime is 214556887. The reversal of 214556871 is 178655412.

214556871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214556871 - 21 = 214556869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214556831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302265 + ... + 302973.

It is an arithmetic number, because the mean of its divisors is an integer number (18051750).

Almost surely, 2214556871 is an apocalyptic number.

214556871 is a deficient number, since it is larger than the sum of its proper divisors (74271129).

214556871 is a wasteful number, since it uses less digits than its factorization.

214556871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538.

The product of its digits is 67200, while the sum is 39.

The square root of 214556871 is about 14647.7599311294. The cubic root of 214556871 is about 598.6607824959.

The spelling of 214556871 in words is "two hundred fourteen million, five hundred fifty-six thousand, eight hundred seventy-one".

Divisors: 1 3 149 447 677 709 2031 2127 100873 105641 302619 316923 479993 1439979 71518957 214556871