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52105312051 = 134008100927
BaseRepresentation
bin110000100001101101…
…111111011100110011
311222111022100002211021
4300201231333130303
51323202424441201
635534205400311
73523134562522
oct604155773463
9158438302737
1052105312051
11201090aa171
12a121b69097
134bb4c9a6c0
1427441a04b9
15154e60aea1
hexc21b7f733

52105312051 has 4 divisors (see below), whose sum is σ = 56113412992. Its totient is φ = 48097211112.

The previous prime is 52105311997. The next prime is 52105312081. The reversal of 52105312051 is 15021350125.

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 52105312051 - 221 = 52103214899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52105312081) 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, 2004050451 + ... + 2004050476.

It is an arithmetic number, because the mean of its divisors is an integer number (14028353248).

Almost surely, 252105312051 is an apocalyptic number.

52105312051 is a deficient number, since it is larger than the sum of its proper divisors (4008100941).

52105312051 is a wasteful number, since it uses less digits than its factorization.

52105312051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008100940.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 52105312051 its reverse (15021350125), we get a palindrome (67126662176).

The spelling of 52105312051 in words is "fifty-two billion, one hundred five million, three hundred twelve thousand, fifty-one".

Divisors: 1 13 4008100927 52105312051