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80351941 is a prime number
BaseRepresentation
bin1001100101000…
…01001011000101
312121012022010211
410302201023011
5131032230231
611550115421
71663660135
oct462411305
9177168124
1080351941
11413a166a
1222aabb71
1313854637
14a958ac5
1570c2eb1
hex4ca12c5

80351941 has 2 divisors, whose sum is σ = 80351942. Its totient is φ = 80351940.

The previous prime is 80351939. The next prime is 80351951. The reversal of 80351941 is 14915308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61559716 + 18792225 = 7846^2 + 4335^2 .

It is a cyclic number.

It is not a de Polignac number, because 80351941 - 21 = 80351939 is a prime.

Together with 80351939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80351951) 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, 40175970 + 40175971.

It is an arithmetic number, because the mean of its divisors is an integer number (40175971).

Almost surely, 280351941 is an apocalyptic number.

It is an amenable number.

80351941 is a deficient number, since it is larger than the sum of its proper divisors (1).

80351941 is an equidigital number, since it uses as much as digits as its factorization.

80351941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 80351941 is about 8963.9244195832. The cubic root of 80351941 is about 431.5178752721.

The spelling of 80351941 in words is "eighty million, three hundred fifty-one thousand, nine hundred forty-one".