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13124273 = 64320411
BaseRepresentation
bin110010000100…
…001010110001
3220200210010012
4302010022301
511324434043
61145144305
7216361121
oct62041261
926623105
1013124273
117454508
12448b095
132946956
141a58c81
151243a18
hexc842b1

13124273 has 4 divisors (see below), whose sum is σ = 13145328. Its totient is φ = 13103220.

The previous prime is 13124263. The next prime is 13124281. The reversal of 13124273 is 37242131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37242131 = 139267929.

It is a cyclic number.

It is not a de Polignac number, because 13124273 - 210 = 13123249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13124203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9563 + ... + 10848.

It is an arithmetic number, because the mean of its divisors is an integer number (3286332).

Almost surely, 213124273 is an apocalyptic number.

It is an amenable number.

13124273 is a deficient number, since it is larger than the sum of its proper divisors (21055).

13124273 is an equidigital number, since it uses as much as digits as its factorization.

13124273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21054.

The product of its digits is 1008, while the sum is 23.

The square root of 13124273 is about 3622.7438496256. The cubic root of 13124273 is about 235.8803436801.

The spelling of 13124273 in words is "thirteen million, one hundred twenty-four thousand, two hundred seventy-three".

Divisors: 1 643 20411 13124273