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382231 is a prime number
BaseRepresentation
bin1011101010100010111
3201102022201
41131110113
544212411
612105331
73151243
oct1352427
9642281
10382231
112411a3
12165247
13104c95
149d423
15783c1
hex5d517

382231 has 2 divisors, whose sum is σ = 382232. Its totient is φ = 382230.

The previous prime is 382229. The next prime is 382241. The reversal of 382231 is 132283.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (132283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 382231 - 21 = 382229 is a prime.

It is a super-2 number, since 2×3822312 = 292201074722, which contains 22 as substring.

Together with 382229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 382199 and 382208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191115 + 191116.

It is an arithmetic number, because the mean of its divisors is an integer number (191116).

2382231 is an apocalyptic number.

382231 is a deficient number, since it is larger than the sum of its proper divisors (1).

382231 is an equidigital number, since it uses as much as digits as its factorization.

382231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 382231 is about 618.2483319832. The cubic root of 382231 is about 72.5730377711.

The spelling of 382231 in words is "three hundred eighty-two thousand, two hundred thirty-one".