Base | Representation |
---|---|
bin | 110010111111… |
… | …010100010100 |
3 | 221011002110100 |
4 | 302333110110 |
5 | 11410212143 |
6 | 1154254100 |
7 | 221420346 |
oct | 62772424 |
9 | 27132410 |
10 | 13366548 |
11 | 75aa538 |
12 | 4587330 |
13 | 2a00000 |
14 | 1abd296 |
15 | 12906d3 |
hex | cbf514 |
13366548 has 54 divisors (see below), whose sum is σ = 36603294. Its totient is φ = 4112784.
The previous prime is 13366541. The next prime is 13366559. The reversal of 13366548 is 84566331.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 3 ways, for example, as 12830724 + 535824 = 3582^2 + 732^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
Its product of digits (51840) is a multiple of the sum of its prime divisors (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13366541) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1028190 + ... + 1028202.
Almost surely, 213366548 is an apocalyptic number.
13366548 is a gapful number since it is divisible by the number (18) 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 13366548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18301647).
13366548 is an abundant number, since it is smaller than the sum of its proper divisors (23236746).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13366548 is an frugal number, since it uses more digits than its factorization.
13366548 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75 (or 18 counting only the distinct ones).
The product of its digits is 51840, while the sum is 36.
The square root of 13366548 is about 3656.0289933205. The cubic root of 13366548 is about 237.3229587338.
13366548 divided by its sum of digits (36) gives a 5-th power (371293 = 135).
The spelling of 13366548 in words is "thirteen million, three hundred sixty-six thousand, five hundred forty-eight".
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