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13289600 = 27524153
BaseRepresentation
bin110010101100…
…100010000000
3221000011220102
4302230202000
511400231400
61152501532
7220650122
oct62544200
927004812
1013289600
117557745
12454a8a8
1329a3c8c
141a9d212
1512779d5
hexcac880

13289600 has 48 divisors (see below), whose sum is σ = 32837370. Its totient is φ = 5314560.

The previous prime is 13289599. The next prime is 13289609. The reversal of 13289600 is 698231.

It can be written as a sum of positive squares in 3 ways, for example, as 5494336 + 7795264 = 2344^2 + 2792^2 .

It is a super-2 number, since 2×132896002 = 353226936320000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13289609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1124 + ... + 5276.

Almost surely, 213289600 is an apocalyptic number.

13289600 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 13289600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16418685).

13289600 is an abundant number, since it is smaller than the sum of its proper divisors (19547770).

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

13289600 is an equidigital number, since it uses as much as digits as its factorization.

13289600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177 (or 4160 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13289600 is about 3645.4903648206. The cubic root of 13289600 is about 236.8666783254.

The spelling of 13289600 in words is "thirteen million, two hundred eighty-nine thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 4153 8306 16612 20765 33224 41530 66448 83060 103825 132896 166120 207650 265792 332240 415300 531584 664480 830600 1328960 1661200 2657920 3322400 6644800 13289600