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80930029 is a prime number
BaseRepresentation
bin1001101001011…
…10010011101101
312122021200010111
410310232103231
5131204230104
612010340021
72001615415
oct464562355
9178250114
1080930029
1141756a24
122312a611
13139c77bb
14aa69645
157189404
hex4d2e4ed

80930029 has 2 divisors, whose sum is σ = 80930030. Its totient is φ = 80930028.

The previous prime is 80930027. The next prime is 80930033. The reversal of 80930029 is 92003908.

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., 79174404 + 1755625 = 8898^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 80930029 - 21 = 80930027 is a prime.

Together with 80930027, 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 (80930021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40465014 + 40465015.

It is an arithmetic number, because the mean of its divisors is an integer number (40465015).

Almost surely, 280930029 is an apocalyptic number.

It is an amenable number.

80930029 is a deficient number, since it is larger than the sum of its proper divisors (1).

80930029 is an equidigital number, since it uses as much as digits as its factorization.

80930029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 80930029 is about 8996.1118823634. Note that the first 3 decimals coincide. The cubic root of 80930029 is about 432.5502479849.

The spelling of 80930029 in words is "eighty million, nine hundred thirty thousand, twenty-nine".