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214231886 = 21131210133
BaseRepresentation
bin11001100010011…
…10101101001110
3112221010002220022
430301032231032
5414320410021
633131422142
75210640521
oct1461165516
9487102808
10214231886
11aaa23650
125b8b4952
13354cb13b
1420648bb8
1513c1b1ab
hexcc4eb4e

214231886 has 24 divisors (see below), whose sum is σ = 362270232. Its totient is φ = 94227600.

The previous prime is 214231877. The next prime is 214231907. The reversal of 214231886 is 688132412.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16076 + ... + 26208.

It is an arithmetic number, because the mean of its divisors is an integer number (15094593).

Almost surely, 2214231886 is an apocalyptic number.

214231886 is a deficient number, since it is larger than the sum of its proper divisors (148038346).

214231886 is a wasteful number, since it uses less digits than its factorization.

214231886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10208 (or 10177 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 214231886 is about 14636.6623927725. The cubic root of 214231886 is about 598.3583699216.

The spelling of 214231886 in words is "two hundred fourteen million, two hundred thirty-one thousand, eight hundred eighty-six".

Divisors: 1 2 11 22 31 62 341 682 961 1922 10133 10571 20266 21142 111463 222926 314123 628246 3455353 6910706 9737813 19475626 107115943 214231886