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272423 is a prime number
BaseRepresentation
bin1000010100000100111
3111211200202
41002200213
532204143
65501115
72213144
oct1024047
9454622
10272423
11176748
1211179b
1396cc8
14713cb
1555ab8
hex42827

272423 has 2 divisors, whose sum is σ = 272424. Its totient is φ = 272422.

The previous prime is 272417. The next prime is 272449. The reversal of 272423 is 324272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272423 - 24 = 272407 is a prime.

It is a super-3 number, since 3×2724233 = 60653039333252901, which contains 333 as substring.

It is an Ulam number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 272395 and 272404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136211 + 136212.

It is an arithmetic number, because the mean of its divisors is an integer number (136212).

2272423 is an apocalyptic number.

272423 is a deficient number, since it is larger than the sum of its proper divisors (1).

272423 is an equidigital number, since it uses as much as digits as its factorization.

272423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 20.

The square root of 272423 is about 521.9415676108. The cubic root of 272423 is about 64.8258057814.

Adding to 272423 its reverse (324272), we get a palindrome (596695).

The spelling of 272423 in words is "two hundred seventy-two thousand, four hundred twenty-three", and thus it is an iban number.