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80852237 is a prime number
BaseRepresentation
bin1001101000110…
…11010100001101
312122010201102022
410310123110031
5131144232422
612004535525
72001142544
oct464332415
9178121368
1080852237
1141703534
12230b15a5
131399b27b
14aa4915b
157171342
hex4d1b50d

80852237 has 2 divisors, whose sum is σ = 80852238. Its totient is φ = 80852236.

The previous prime is 80852231. The next prime is 80852263. The reversal of 80852237 is 73225808.

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., 74200996 + 6651241 = 8614^2 + 2579^2 .

It is a cyclic number.

It is not a de Polignac number, because 80852237 - 216 = 80786701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80852197 and 80852206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80852231) 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, 40426118 + 40426119.

It is an arithmetic number, because the mean of its divisors is an integer number (40426119).

Almost surely, 280852237 is an apocalyptic number.

It is an amenable number.

80852237 is a deficient number, since it is larger than the sum of its proper divisors (1).

80852237 is an equidigital number, since it uses as much as digits as its factorization.

80852237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 80852237 is about 8991.7871972150. The cubic root of 80852237 is about 432.4116107923.

The spelling of 80852237 in words is "eighty million, eight hundred fifty-two thousand, two hundred thirty-seven".