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80868001 is a prime number
BaseRepresentation
bin1001101000111…
…11001010100001
312122011112001011
410310133022201
5131200234001
612005140521
72001236524
oct464371241
9178145034
1080868001
1141714365
12230ba741
13139a54b6
14aa50bbb
157175d51
hex4d1f2a1

80868001 has 2 divisors, whose sum is σ = 80868002. Its totient is φ = 80868000.

The previous prime is 80867999. The next prime is 80868019. The reversal of 80868001 is 10086808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 9296401 = 8460^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 80868001 - 21 = 80867999 is a prime.

Together with 80867999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80868041) 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, 40434000 + 40434001.

It is an arithmetic number, because the mean of its divisors is an integer number (40434001).

Almost surely, 280868001 is an apocalyptic number.

It is an amenable number.

80868001 is a deficient number, since it is larger than the sum of its proper divisors (1).

80868001 is an equidigital number, since it uses as much as digits as its factorization.

80868001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 80868001 is about 8992.6637321764. The cubic root of 80868001 is about 432.4397118233.

The spelling of 80868001 in words is "eighty million, eight hundred sixty-eight thousand, one".