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13289000 = 235397137
BaseRepresentation
bin110010101100…
…011000101000
3221000011002012
4302230120220
511400222000
61152455052
7220645304
oct62543050
927004065
1013289000
11755724a
12454a488
1329a391a
141a9cd04
151277735
hexcac628

13289000 has 64 divisors (see below), whose sum is σ = 31646160. Its totient is φ = 5222400.

The previous prime is 13288973. The next prime is 13289039. The reversal of 13289000 is 98231.

It can be written as a sum of positive squares in 8 ways, for example, as 515524 + 12773476 = 718^2 + 3574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96932 + ... + 97068.

Almost surely, 213289000 is an apocalyptic number.

13289000 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 13289000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15823080).

13289000 is an abundant number, since it is smaller than the sum of its proper divisors (18357160).

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

13289000 is a wasteful number, since it uses less digits than its factorization.

13289000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 13289000 is about 3645.4080704360. The cubic root of 13289000 is about 236.8631135794.

The spelling of 13289000 in words is "thirteen million, two hundred eighty-nine thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 97 100 125 137 194 200 250 274 388 485 500 548 685 776 970 1000 1096 1370 1940 2425 2740 3425 3880 4850 5480 6850 9700 12125 13289 13700 17125 19400 24250 26578 27400 34250 48500 53156 66445 68500 97000 106312 132890 137000 265780 332225 531560 664450 1328900 1661125 2657800 3322250 6644500 13289000