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52105243 = 172330241
BaseRepresentation
bin1100011011000…
…1000000011011
310122001012221211
43012301000123
5101314331433
65100443551
71201613221
oct306610033
9118035854
1052105243
1127459493
12155495b7
13aa44708
146cc4b11
1548938cd
hex31b101b

52105243 has 4 divisors (see below), whose sum is σ = 52137208. Its totient is φ = 52073280.

The previous prime is 52105241. The next prime is 52105259. The reversal of 52105243 is 34250125.

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 52105243 - 21 = 52105241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52105241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13398 + ... + 16843.

It is an arithmetic number, because the mean of its divisors is an integer number (13034302).

Almost surely, 252105243 is an apocalyptic number.

52105243 is a deficient number, since it is larger than the sum of its proper divisors (31965).

52105243 is a wasteful number, since it uses less digits than its factorization.

52105243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31964.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52105243 is about 7218.3961515007. The cubic root of 52105243 is about 373.5027541169.

Adding to 52105243 its reverse (34250125), we get a palindrome (86355368).

The spelling of 52105243 in words is "fifty-two million, one hundred five thousand, two hundred forty-three".

Divisors: 1 1723 30241 52105243