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252345211 = 298701559
BaseRepresentation
bin11110000101001…
…11101101111011
3122120211110112221
433002213231323
51004100021321
641012344511
76152620216
oct1702475573
9576743487
10252345211
1111a495768
1270615137
1340383cc1
142572a77d
1517248e41
hexf0a7b7b

252345211 has 4 divisors (see below), whose sum is σ = 261046800. Its totient is φ = 243643624.

The previous prime is 252345179. The next prime is 252345253. The reversal of 252345211 is 112543252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252345211 - 25 = 252345179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252345271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4350751 + ... + 4350808.

It is an arithmetic number, because the mean of its divisors is an integer number (65261700).

Almost surely, 2252345211 is an apocalyptic number.

252345211 is a deficient number, since it is larger than the sum of its proper divisors (8701589).

252345211 is an equidigital number, since it uses as much as digits as its factorization.

252345211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701588.

The product of its digits is 2400, while the sum is 25.

The square root of 252345211 is about 15885.3772696779. The cubic root of 252345211 is about 631.9242510226.

Adding to 252345211 its reverse (112543252), we get a palindrome (364888463).

The spelling of 252345211 in words is "two hundred fifty-two million, three hundred forty-five thousand, two hundred eleven".

Divisors: 1 29 8701559 252345211