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52113233 = 239218047
BaseRepresentation
bin1100011011001…
…0111101010001
310122001121220202
43012302331101
5101320110413
65100544545
71201645424
oct306627521
9118047822
1052113233
1127464497
1215552155
13aa48243
146cc79bb
154895e58
hex31b2f51

52113233 has 4 divisors (see below), whose sum is σ = 52331520. Its totient is φ = 51894948.

The previous prime is 52113223. The next prime is 52113247. The reversal of 52113233 is 33231125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52113233 - 26 = 52113169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52113223) 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, 108785 + ... + 109262.

It is an arithmetic number, because the mean of its divisors is an integer number (13082880).

Almost surely, 252113233 is an apocalyptic number.

It is an amenable number.

52113233 is a deficient number, since it is larger than the sum of its proper divisors (218287).

52113233 is a wasteful number, since it uses less digits than its factorization.

52113233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218286.

The product of its digits is 540, while the sum is 20.

The square root of 52113233 is about 7218.9495773277. The cubic root of 52113233 is about 373.5218445468.

Adding to 52113233 its reverse (33231125), we get a palindrome (85344358).

The spelling of 52113233 in words is "fifty-two million, one hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 239 218047 52113233