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52787401 is a prime number
BaseRepresentation
bin1100100101011…
…1100011001001
310200022212200221
43021113203021
5102003144101
65123230041
71210454062
oct311274311
9120285627
1052787401
1127884a57
1215818321
13ac23064
147021569
15497aaa1
hex32578c9

52787401 has 2 divisors, whose sum is σ = 52787402. Its totient is φ = 52787400.

The previous prime is 52787393. The next prime is 52787429. The reversal of 52787401 is 10478725.

It is a happy number.

52787401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 10732176 = 6485^2 + 3276^2 .

It is a cyclic number.

It is not a de Polignac number, because 52787401 - 23 = 52787393 is a prime.

It is not a weakly prime, because it can be changed into another prime (52787201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26393700 + 26393701.

It is an arithmetic number, because the mean of its divisors is an integer number (26393701).

Almost surely, 252787401 is an apocalyptic number.

It is an amenable number.

52787401 is a deficient number, since it is larger than the sum of its proper divisors (1).

52787401 is an equidigital number, since it uses as much as digits as its factorization.

52787401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 52787401 is about 7265.4938579563. The cubic root of 52787401 is about 375.1256491540.

The spelling of 52787401 in words is "fifty-two million, seven hundred eighty-seven thousand, four hundred one".