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252441111 = 31358711027
BaseRepresentation
bin11110000101111…
…11001000010111
3122121000100002210
433002333020113
51004111103421
641014404503
76153466626
oct1702771027
9577010083
10252441111
1111a55081a
1270660733
13403b8850
14257536bd
1517267576
hexf0bf217

252441111 has 16 divisors (see below), whose sum is σ = 363129984. Its totient is φ = 155069664.

The previous prime is 252441083. The next prime is 252441131. The reversal of 252441111 is 111144252.

It is not a de Polignac number, because 252441111 - 211 = 252439063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252441131) 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, 17380 + ... + 28406.

It is an arithmetic number, because the mean of its divisors is an integer number (22695624).

Almost surely, 2252441111 is an apocalyptic number.

252441111 is a deficient number, since it is larger than the sum of its proper divisors (110688873).

252441111 is a wasteful number, since it uses less digits than its factorization.

252441111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630.

The product of its digits is 320, while the sum is 21.

The square root of 252441111 is about 15888.3954822380. The cubic root of 252441111 is about 632.0042919847.

Adding to 252441111 its reverse (111144252), we get a palindrome (363585363).

The spelling of 252441111 in words is "two hundred fifty-two million, four hundred forty-one thousand, one hundred eleven".

Divisors: 1 3 13 39 587 1761 7631 11027 22893 33081 143351 430053 6472849 19418547 84147037 252441111