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52302213 = 3310191901
BaseRepresentation
bin1100011110000…
…1000110000101
310122102020011000
43013201012011
5101342132323
65105003513
71203363405
oct307410605
9118366130
1052302213
1127583477
1215623599
13aab3272
146d36805
1548d1e43
hex31e1185

52302213 has 16 divisors (see below), whose sum is σ = 77601600. Its totient is φ = 34815600.

The previous prime is 52302199. The next prime is 52302223. The reversal of 52302213 is 31220325.

It is not a de Polignac number, because 52302213 - 25 = 52302181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52302223) 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 15 ways as a sum of consecutive naturals, for example, 26563 + ... + 28463.

It is an arithmetic number, because the mean of its divisors is an integer number (4850100).

Almost surely, 252302213 is an apocalyptic number.

It is an amenable number.

52302213 is a deficient number, since it is larger than the sum of its proper divisors (25299387).

52302213 is a wasteful number, since it uses less digits than its factorization.

52302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 52302213 is about 7232.0268943084. The cubic root of 52302213 is about 373.9728048896.

Adding to 52302213 its reverse (31220325), we get a palindrome (83522538).

The spelling of 52302213 in words is "fifty-two million, three hundred two thousand, two hundred thirteen".

Divisors: 1 3 9 27 1019 1901 3057 5703 9171 17109 27513 51327 1937119 5811357 17434071 52302213