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272123 = 503541
BaseRepresentation
bin1000010011011111011
3111211021122
41002123323
532201443
65455455
72212235
oct1023373
9454248
10272123
111764a5
1211158b
1396b27
1471255
1555968
hex426fb

272123 has 4 divisors (see below), whose sum is σ = 273168. Its totient is φ = 271080.

The previous prime is 272093. The next prime is 272131. The reversal of 272123 is 321272.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 272123 - 26 = 272059 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (272183) 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 in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 773.

It is an arithmetic number, because the mean of its divisors is an integer number (68292).

2272123 is an apocalyptic number.

272123 is a deficient number, since it is larger than the sum of its proper divisors (1045).

272123 is an equidigital number, since it uses as much as digits as its factorization.

272123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 168, while the sum is 17.

The square root of 272123 is about 521.6540999551. The cubic root of 272123 is about 64.8020010305.

Adding to 272123 its reverse (321272), we get a palindrome (593395).

It can be divided in two parts, 2721 and 23, that added together give a cube (2744 = 143).

The spelling of 272123 in words is "two hundred seventy-two thousand, one hundred twenty-three", and thus it is an iban number.

Divisors: 1 503 541 272123