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13272123 = 331142711
BaseRepresentation
bin110010101000…
…010000111011
3220222021221010
4302220100323
511344201443
61152245003
7220545144
oct62502073
926867833
1013272123
1175455a7
124540763
132999037
141a96acb
151272733
hexca843b

13272123 has 8 divisors (see below), whose sum is σ = 18267136. Its totient is φ = 8562600.

The previous prime is 13272113. The next prime is 13272143. The reversal of 13272123 is 32127231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13272123 - 213 = 13263931 is a prime.

It is a super-2 number, since 2×132721232 = 352298497854258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13272123.

It is not an unprimeable number, because it can be changed into a prime (13272113) 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 7 ways as a sum of consecutive naturals, for example, 71263 + ... + 71448.

It is an arithmetic number, because the mean of its divisors is an integer number (2283392).

Almost surely, 213272123 is an apocalyptic number.

13272123 is a deficient number, since it is larger than the sum of its proper divisors (4995013).

13272123 is a wasteful number, since it uses less digits than its factorization.

13272123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142745.

The product of its digits is 504, while the sum is 21.

The square root of 13272123 is about 3643.0925050018. The cubic root of 13272123 is about 236.7627992279.

Adding to 13272123 its reverse (32127231), we get a palindrome (45399354).

The spelling of 13272123 in words is "thirteen million, two hundred seventy-two thousand, one hundred twenty-three".

Divisors: 1 3 31 93 142711 428133 4424041 13272123