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252240014 = 21314965111
BaseRepresentation
bin11110000100011…
…10000010001110
3122120122010020202
433002032002032
51004033140024
641010213502
76152001425
oct1702160216
9576563222
10252240014
1111a423724
1270584292
1340348160
14257002bc
1517227bae
hexf08e08e

252240014 has 16 divisors (see below), whose sum is σ = 410205600. Its totient is φ = 115635360.

The previous prime is 252240013. The next prime is 252240019. The reversal of 252240014 is 410042252.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252240013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28682 + ... + 36429.

It is an arithmetic number, because the mean of its divisors is an integer number (25637850).

Almost surely, 2252240014 is an apocalyptic number.

252240014 is a deficient number, since it is larger than the sum of its proper divisors (157965586).

252240014 is a wasteful number, since it uses less digits than its factorization.

252240014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65275.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252240014 is about 15882.0657976222. The cubic root of 252240014 is about 631.8364271842.

Adding to 252240014 its reverse (410042252), we get a palindrome (662282266).

The spelling of 252240014 in words is "two hundred fifty-two million, two hundred forty thousand, fourteen".

Divisors: 1 2 13 26 149 298 1937 3874 65111 130222 846443 1692886 9701539 19403078 126120007 252240014