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80774801 is a prime number
BaseRepresentation
bin1001101000010…
…00011010010001
312121222210012022
410310020122101
5131134243201
612003141225
72000401022
oct464103221
9177883168
1080774801
1141660338
1223074815
1313971c53
14aa28c49
15715841b
hex4d08691

80774801 has 2 divisors, whose sum is σ = 80774802. Its totient is φ = 80774800.

The previous prime is 80774791. The next prime is 80774819. The reversal of 80774801 is 10847708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67634176 + 13140625 = 8224^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 80774801 - 218 = 80512657 is a prime.

It is a super-3 number, since 3×807748013 (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (80774891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40387400 + 40387401.

It is an arithmetic number, because the mean of its divisors is an integer number (40387401).

Almost surely, 280774801 is an apocalyptic number.

It is an amenable number.

80774801 is a deficient number, since it is larger than the sum of its proper divisors (1).

80774801 is an equidigital number, since it uses as much as digits as its factorization.

80774801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 80774801 is about 8987.4802364178. The cubic root of 80774801 is about 432.2735197007.

The spelling of 80774801 in words is "eighty million, seven hundred seventy-four thousand, eight hundred one".