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80374081 is a prime number
BaseRepresentation
bin1001100101001…
…10100101000001
312121020102111211
410302212211001
5131033432311
611550410121
71664111524
oct462464501
9177212454
1080374081
1141407267
1222b00941
1313861738
14a962bbb
1570c9821
hex4ca6941

80374081 has 2 divisors, whose sum is σ = 80374082. Its totient is φ = 80374080.

The previous prime is 80374069. The next prime is 80374097. The reversal of 80374081 is 18047308.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73530625 + 6843456 = 8575^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 80374081 - 221 = 78276929 is a prime.

It is a super-2 number, since 2×803740812 = 12919985793189122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80374061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40187040 + 40187041.

It is an arithmetic number, because the mean of its divisors is an integer number (40187041).

Almost surely, 280374081 is an apocalyptic number.

It is an amenable number.

80374081 is a deficient number, since it is larger than the sum of its proper divisors (1).

80374081 is an equidigital number, since it uses as much as digits as its factorization.

80374081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 80374081 is about 8965.1592846976. The cubic root of 80374081 is about 431.5575047998.

The spelling of 80374081 in words is "eighty million, three hundred seventy-four thousand, eighty-one".