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252244207 = 37157173251
BaseRepresentation
bin11110000100011…
…11000011101111
3122120122100000001
433002033003233
51004033303312
641010245131
76152016565
oct1702170357
9576570001
10252244207
1111a426896
12705867a7
134034a037
1425701a35
1517229057
hexf08f0ef

252244207 has 16 divisors (see below), whose sum is σ = 263263392. Its totient is φ = 241488000.

The previous prime is 252244193. The next prime is 252244217. The reversal of 252244207 is 702442252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252244207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252244217) 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, 1004832 + ... + 1005082.

It is an arithmetic number, because the mean of its divisors is an integer number (16453962).

Almost surely, 2252244207 is an apocalyptic number.

252244207 is a deficient number, since it is larger than the sum of its proper divisors (11019185).

252244207 is a wasteful number, since it uses less digits than its factorization.

252244207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 252244207 is about 15882.1978013120. The cubic root of 252244207 is about 631.8399281823.

Adding to 252244207 its reverse (702442252), we get a palindrome (954686459).

The spelling of 252244207 in words is "two hundred fifty-two million, two hundred forty-four thousand, two hundred seven".

Divisors: 1 37 157 173 251 5809 6401 9287 27161 39407 43423 1004957 1458059 1606651 6817411 252244207