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52123201 = 134009477
BaseRepresentation
bin1100011011010…
…1011001000001
310122002010120221
43012311121001
5101320420301
65101103041
71202016454
oct306653101
9118063527
1052123201
1127470a29
1215557a81
13aa4c940
146ccb49b
154898da1
hex31b5641

52123201 has 4 divisors (see below), whose sum is σ = 56132692. Its totient is φ = 48113712.

The previous prime is 52123163. The next prime is 52123229. The reversal of 52123201 is 10232125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34281025 + 17842176 = 5855^2 + 4224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52123201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52123501) 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, 2004726 + ... + 2004751.

It is an arithmetic number, because the mean of its divisors is an integer number (14033173).

Almost surely, 252123201 is an apocalyptic number.

It is an amenable number.

52123201 is a deficient number, since it is larger than the sum of its proper divisors (4009491).

52123201 is a wasteful number, since it uses less digits than its factorization.

52123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009490.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52123201 is about 7219.6399494712. The cubic root of 52123201 is about 373.5456582577.

Adding to 52123201 its reverse (10232125), we get a palindrome (62355326).

The spelling of 52123201 in words is "fifty-two million, one hundred twenty-three thousand, two hundred one".

Divisors: 1 13 4009477 52123201