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52251201 = 325805689
BaseRepresentation
bin1100011101010…
…0101001000001
310122022122011200
43013110221001
5101334014301
65103531413
71203061602
oct307245101
9118278150
1052251201
1127549112
12155b9b69
13aa95c92
146d21da9
1548c1c86
hex31d4a41

52251201 has 6 divisors (see below), whose sum is σ = 75473970. Its totient is φ = 34834128.

The previous prime is 52251187. The next prime is 52251209. The reversal of 52251201 is 10215225.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 65025 = 7224^2 + 255^2 .

It is a de Polignac number, because none of the positive numbers 2k-52251201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52251209) 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 5 ways as a sum of consecutive naturals, for example, 2902836 + ... + 2902853.

It is an arithmetic number, because the mean of its divisors is an integer number (12578995).

Almost surely, 252251201 is an apocalyptic number.

It is an amenable number.

52251201 is a deficient number, since it is larger than the sum of its proper divisors (23222769).

52251201 is a wasteful number, since it uses less digits than its factorization.

52251201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5805695 (or 5805692 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52251201 is about 7228.4992218302. The cubic root of 52251201 is about 373.8511828450.

Adding to 52251201 its reverse (10215225), we get a palindrome (62466426).

The spelling of 52251201 in words is "fifty-two million, two hundred fifty-one thousand, two hundred one".

Divisors: 1 3 9 5805689 17417067 52251201