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12873270 = 235429109
BaseRepresentation
bin110001000110…
…111000110110
3220020000210210
4301012320312
511243421040
61135530250
7214264254
oct61067066
926200723
1012873270
1172a2973
124389986
132889627
1419d15d4
1511e4480
hexc46e36

12873270 has 16 divisors (see below), whose sum is σ = 30895920. Its totient is φ = 3432864.

The previous prime is 12873229. The next prime is 12873271. The reversal of 12873270 is 7237821.

12873270 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 429109 = 12873270 / (1 + 2 + 8 + 7 + 3 + 2 + 7 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12873271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214525 + ... + 214584.

It is an arithmetic number, because the mean of its divisors is an integer number (1930995).

Almost surely, 212873270 is an apocalyptic number.

12873270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12873270 is an abundant number, since it is smaller than the sum of its proper divisors (18022650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12873270 is a wasteful number, since it uses less digits than its factorization.

12873270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429119.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12873270 is about 3587.9339458803. The cubic root of 12873270 is about 234.3669092318.

The spelling of 12873270 in words is "twelve million, eight hundred seventy-three thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 429109 858218 1287327 2145545 2574654 4291090 6436635 12873270