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214231550 = 25213329587
BaseRepresentation
bin11001100010011…
…10100111111110
3112221010002102212
430301032213332
5414320402200
633131420422
75210636531
oct1461164776
9487102385
10214231550
11aaa23375
125b8b4712
13354cac40
1420648a18
1513c1b035
hexcc4e9fe

214231550 has 24 divisors (see below), whose sum is σ = 429123576. Its totient is φ = 79100640.

The previous prime is 214231531. The next prime is 214231559. The reversal of 214231550 is 55132412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214231559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164144 + ... + 165443.

It is an arithmetic number, because the mean of its divisors is an integer number (17880149).

Almost surely, 2214231550 is an apocalyptic number.

214231550 is an abundant number, since it is smaller than the sum of its proper divisors (214892026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214231550 is a wasteful number, since it uses less digits than its factorization.

214231550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329612 (or 329607 counting only the distinct ones).

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

The square root of 214231550 is about 14636.6509147414. The cubic root of 214231550 is about 598.3580571009.

Adding to 214231550 its reverse (55132412), we get a palindrome (269363962).

The spelling of 214231550 in words is "two hundred fourteen million, two hundred thirty-one thousand, five hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 329587 659174 1647935 3295870 4284631 8239675 8569262 16479350 21423155 42846310 107115775 214231550