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12873294 = 2327711439
BaseRepresentation
bin110001000110…
…111001001110
3220020000211200
4301012321032
511243421134
61135530330
7214264320
oct61067116
926200750
1012873294
1172a2995
1243899a6
132889645
1419d1610
1511e4499
hexc46e4e

12873294 has 48 divisors (see below), whose sum is σ = 32348160. Its totient is φ = 3623760.

The previous prime is 12873271. The next prime is 12873319. The reversal of 12873294 is 49237821.

12873294 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8227 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

It is a vampire number, since it can be written as 29824317 (with its own digits).

Almost surely, 212873294 is an apocalyptic number.

12873294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12873294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174080).

12873294 is an abundant number, since it is smaller than the sum of its proper divisors (19474866).

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

12873294 is a wasteful number, since it uses less digits than its factorization.

12873294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1522 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12873294 is about 3587.9372904219. The cubic root of 12873294 is about 234.3670548773.

The spelling of 12873294 in words is "twelve million, eight hundred seventy-three thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 71 126 142 213 426 497 639 994 1278 1439 1491 2878 2982 4317 4473 8634 8946 10073 12951 20146 25902 30219 60438 90657 102169 181314 204338 306507 613014 715183 919521 1430366 1839042 2145549 4291098 6436647 12873294