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13279000 = 235372271
BaseRepresentation
bin110010101001…
…111100011000
3220222122100211
4302221330120
511344412000
61152340504
7220604200
oct62517430
926878324
1013279000
11754a789
124544734
13299c1c7
141a99400
1512747ba
hexca9f18

13279000 has 96 divisors (see below), whose sum is σ = 36279360. Its totient is φ = 4536000.

The previous prime is 13278997. The next prime is 13279001. The reversal of 13279000 is 97231.

13279000 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13279000 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13279001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48865 + ... + 49135.

It is an arithmetic number, because the mean of its divisors is an integer number (377910).

Almost surely, 213279000 is an apocalyptic number.

13279000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13279000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18139680).

13279000 is an abundant number, since it is smaller than the sum of its proper divisors (23000360).

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

13279000 is a wasteful number, since it uses less digits than its factorization.

13279000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13279000 is about 3644.0362237497. The cubic root of 13279000 is about 236.8036853426.

The spelling of 13279000 in words is "thirteen million, two hundred seventy-nine thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 49 50 56 70 98 100 125 140 175 196 200 245 250 271 280 350 392 490 500 542 700 875 980 1000 1084 1225 1355 1400 1750 1897 1960 2168 2450 2710 3500 3794 4900 5420 6125 6775 7000 7588 9485 9800 10840 12250 13279 13550 15176 18970 24500 26558 27100 33875 37940 47425 49000 53116 54200 66395 67750 75880 94850 106232 132790 135500 189700 237125 265580 271000 331975 379400 474250 531160 663950 948500 1327900 1659875 1897000 2655800 3319750 6639500 13279000