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80237231 is a prime number
BaseRepresentation
bin1001100100001…
…01001010101111
312120222110210022
410302011022233
5131020042411
611543432355
71663001534
oct462051257
9176873708
1080237231
1141323468
1222a556bb
1313814369
14a928d8b
15709dedb
hex4c852af

80237231 has 2 divisors, whose sum is σ = 80237232. Its totient is φ = 80237230.

The previous prime is 80237191. The next prime is 80237281. The reversal of 80237231 is 13273208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80237231 - 26 = 80237167 is a prime.

It is a super-2 number, since 2×802372312 = 12876026477094722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80237231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80237281) 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, 40118615 + 40118616.

It is an arithmetic number, because the mean of its divisors is an integer number (40118616).

Almost surely, 280237231 is an apocalyptic number.

80237231 is a deficient number, since it is larger than the sum of its proper divisors (1).

80237231 is an equidigital number, since it uses as much as digits as its factorization.

80237231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 80237231 is about 8957.5237091509. The cubic root of 80237231 is about 431.3124332770.

The spelling of 80237231 in words is "eighty million, two hundred thirty-seven thousand, two hundred thirty-one".