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80213251 is a prime number
BaseRepresentation
bin1001100011111…
…11010100000011
312120221020220011
410301333110003
5131013311001
611543125351
71662541606
oct461772403
9176836804
1080213251
1141307448
1222a43857
1313806481
14a92033d
157096d51
hex4c7f503

80213251 has 2 divisors, whose sum is σ = 80213252. Its totient is φ = 80213250.

The previous prime is 80213239. The next prime is 80213281. The reversal of 80213251 is 15231208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80213251 - 29 = 80212739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40106625 + 40106626.

It is an arithmetic number, because the mean of its divisors is an integer number (40106626).

Almost surely, 280213251 is an apocalyptic number.

80213251 is a deficient number, since it is larger than the sum of its proper divisors (1).

80213251 is an equidigital number, since it uses as much as digits as its factorization.

80213251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 80213251 is about 8956.1850695483. The cubic root of 80213251 is about 431.2694611115.

Adding to 80213251 its reverse (15231208), we get a palindrome (95444459).

The spelling of 80213251 in words is "eighty million, two hundred thirteen thousand, two hundred fifty-one".