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80641201 is a prime number
BaseRepresentation
bin1001100111001…
…11110010110001
312121201222221011
410303213302301
5131121004301
612000230521
71666303354
oct463476261
9177658834
1080641201
1141579a23
122300b441
13139261b4
14a9d229b
15712da51
hex4ce7cb1

80641201 has 2 divisors, whose sum is σ = 80641202. Its totient is φ = 80641200.

The previous prime is 80641193. The next prime is 80641213. The reversal of 80641201 is 10214608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55890576 + 24750625 = 7476^2 + 4975^2 .

It is a cyclic number.

It is not a de Polignac number, because 80641201 - 23 = 80641193 is a prime.

It is not a weakly prime, because it can be changed into another prime (80641271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40320600 + 40320601.

It is an arithmetic number, because the mean of its divisors is an integer number (40320601).

Almost surely, 280641201 is an apocalyptic number.

It is an amenable number.

80641201 is a deficient number, since it is larger than the sum of its proper divisors (1).

80641201 is an equidigital number, since it uses as much as digits as its factorization.

80641201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 80641201 is about 8980.0445989984. The cubic root of 80641201 is about 432.0350640978.

Adding to 80641201 its reverse (10214608), we get a palindrome (90855809).

The spelling of 80641201 in words is "eighty million, six hundred forty-one thousand, two hundred one".