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8531023 is a prime number
BaseRepresentation
bin100000100010…
…110001001111
3121001102100211
4200202301033
54140443043
6502503251
7132340534
oct40426117
917042324
108531023
1148a7536
122a34b27
1319c9057
1411c0d8b
15b37a9d
hex822c4f

8531023 has 2 divisors, whose sum is σ = 8531024. Its totient is φ = 8531022.

The previous prime is 8531021. The next prime is 8531051. The reversal of 8531023 is 3201358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8531023 - 21 = 8531021 is a prime.

Together with 8531021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8530985 and 8531003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8531021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4265511 + 4265512.

It is an arithmetic number, because the mean of its divisors is an integer number (4265512).

Almost surely, 28531023 is an apocalyptic number.

8531023 is a deficient number, since it is larger than the sum of its proper divisors (1).

8531023 is an equidigital number, since it uses as much as digits as its factorization.

8531023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 8531023 is about 2920.7915023158. The cubic root of 8531023 is about 204.3307383255.

The spelling of 8531023 in words is "eight million, five hundred thirty-one thousand, twenty-three".