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52201213 is a prime number
BaseRepresentation
bin1100011100100…
…0011011111101
310122020002121021
43013020123331
5101330414323
65102504141
71202463061
oct307103375
9118202537
1052201213
11275145a9
1215595051
13aa792bc
146d0baa1
1548b205d
hex31c86fd

52201213 has 2 divisors, whose sum is σ = 52201214. Its totient is φ = 52201212.

The previous prime is 52201187. The next prime is 52201267. The reversal of 52201213 is 31210225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48972004 + 3229209 = 6998^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 52201213 - 213 = 52193021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52201013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26100606 + 26100607.

It is an arithmetic number, because the mean of its divisors is an integer number (26100607).

Almost surely, 252201213 is an apocalyptic number.

It is an amenable number.

52201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

52201213 is an equidigital number, since it uses as much as digits as its factorization.

52201213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 52201213 is about 7225.0406919269. The cubic root of 52201213 is about 373.7319253907.

Adding to 52201213 its reverse (31210225), we get a palindrome (83411438).

The spelling of 52201213 in words is "fifty-two million, two hundred one thousand, two hundred thirteen".