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214231055 = 542846211
BaseRepresentation
bin11001100010011…
…10100000001111
3112221010001202112
430301032200033
5414320343210
633131414235
75210635223
oct1461164017
9487101675
10214231055
11aaa22a65
125b8b437b
13354ca94c
1420648783
1513c1ad05
hexcc4e80f

214231055 has 4 divisors (see below), whose sum is σ = 257077272. Its totient is φ = 171384840.

The previous prime is 214231019. The next prime is 214231079. The reversal of 214231055 is 550132412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 214231055 - 216 = 214165519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214231055.

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 3 ways as a sum of consecutive naturals, for example, 21423101 + ... + 21423110.

It is an arithmetic number, because the mean of its divisors is an integer number (64269318).

Almost surely, 2214231055 is an apocalyptic number.

214231055 is a deficient number, since it is larger than the sum of its proper divisors (42846217).

214231055 is an equidigital number, since it uses as much as digits as its factorization.

214231055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42846216.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 214231055 is about 14636.6340051256. The cubic root of 214231055 is about 598.3575962483.

Adding to 214231055 its reverse (550132412), we get a palindrome (764363467).

The spelling of 214231055 in words is "two hundred fourteen million, two hundred thirty-one thousand, fifty-five".

Divisors: 1 5 42846211 214231055