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13484720 = 245168559
BaseRepresentation
bin110011011100…
…001010110000
3221101002120002
4303130022300
511423002340
61201005132
7222422024
oct63341260
927332502
1013484720
1176802a7
1246237a8
132a41a32
141b10384
1512b5715
hexcdc2b0

13484720 has 20 divisors (see below), whose sum is σ = 31352160. Its totient is φ = 5393856.

The previous prime is 13484719. The next prime is 13484729. The reversal of 13484720 is 2748431.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (13484729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84200 + ... + 84359.

It is an arithmetic number, because the mean of its divisors is an integer number (1567608).

Almost surely, 213484720 is an apocalyptic number.

13484720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13484720 is an abundant number, since it is smaller than the sum of its proper divisors (17867440).

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

13484720 is a wasteful number, since it uses less digits than its factorization.

13484720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168572 (or 168566 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 13484720 is about 3672.1546808379. The cubic root of 13484720 is about 238.0202887395.

The spelling of 13484720 in words is "thirteen million, four hundred eighty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 168559 337118 674236 842795 1348472 1685590 2696944 3371180 6742360 13484720