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13448320 = 27521013
BaseRepresentation
bin110011010011…
…010010000000
3221022020121221
4303103102000
511420321240
61200124424
7222210634
oct63232200
927266557
1013448320
117655a16
124606714
132a2b2b2
141b00dc4
1512a9a4a
hexcd3480

13448320 has 32 divisors (see below), whose sum is σ = 32151420. Its totient is φ = 5379072.

The previous prime is 13448317. The next prime is 13448321. The reversal of 13448320 is 2384431.

It can be written as a sum of positive squares in 2 ways, for example, as 10810944 + 2637376 = 3288^2 + 1624^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (13448321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9867 + ... + 11146.

Almost surely, 213448320 is an apocalyptic number.

13448320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13448320 is an abundant number, since it is smaller than the sum of its proper divisors (18703100).

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

13448320 is an equidigital number, since it uses as much as digits as its factorization.

13448320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21032 (or 21020 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 13448320 is about 3667.1951134348. The cubic root of 13448320 is about 237.8059289334.

The spelling of 13448320 in words is "thirteen million, four hundred forty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 21013 42026 84052 105065 168104 210130 336208 420260 672416 840520 1344832 1681040 2689664 3362080 6724160 13448320