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430081 is a prime number
BaseRepresentation
bin1101001000000000001
3210211221221
41221000001
5102230311
613115041
73440611
oct1510001
9724857
10430081
11274143
12188a81
131209b2
14b2a41
1587671
hex69001

430081 has 2 divisors, whose sum is σ = 430082. Its totient is φ = 430080.

The previous prime is 430061. The next prime is 430091. The reversal of 430081 is 180034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379456 + 50625 = 616^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 430081 - 27 = 429953 is a prime.

It is a super-2 number, since 2×4300812 = 369939333122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (430061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215040 + 215041.

It is an arithmetic number, because the mean of its divisors is an integer number (215041).

It is a Proth number, since it is equal to 105 ⋅ 212 + 1 and 105 < 212.

2430081 is an apocalyptic number.

It is an amenable number.

430081 is a deficient number, since it is larger than the sum of its proper divisors (1).

430081 is an equidigital number, since it uses as much as digits as its factorization.

430081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 430081 is about 655.8056114429. The cubic root of 430081 is about 75.4831621882.

Subtracting from 430081 its reverse (180034), we obtain a cube (250047 = 633).

The spelling of 430081 in words is "four hundred thirty thousand, eighty-one".