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252207245 = 5612113919
BaseRepresentation
bin11110000100001…
…10000010001101
3122120120110022002
433002012002031
51004031112440
641005402045
76151504043
oct1702060215
9576513262
10252207245
1111a401044
1270569325
1340336274
14256d2393
151721d115
hexf08608d

252207245 has 16 divisors (see below), whose sum is σ = 309146880. Its totient is φ = 197467200.

The previous prime is 252207233. The next prime is 252207251. The reversal of 252207245 is 542702252.

It is not a de Polignac number, because 252207245 - 218 = 251945101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62396 + ... + 66314.

It is an arithmetic number, because the mean of its divisors is an integer number (19321680).

Almost surely, 2252207245 is an apocalyptic number.

It is an amenable number.

252207245 is a deficient number, since it is larger than the sum of its proper divisors (56939635).

252207245 is a wasteful number, since it uses less digits than its factorization.

252207245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 252207245 is about 15881.0341287965. The cubic root of 252207245 is about 631.8090649586.

Adding to 252207245 its reverse (542702252), we get a palindrome (794909497).

The spelling of 252207245 in words is "two hundred fifty-two million, two hundred seven thousand, two hundred forty-five".

Divisors: 1 5 61 211 305 1055 3919 12871 19595 64355 239059 826909 1195295 4134545 50441449 252207245