Base | Representation |
---|---|
bin | 110010011111… |
… | …101111010000 |
3 | 220220112000200 |
4 | 302133233100 |
5 | 11342042300 |
6 | 1151415200 |
7 | 220341264 |
oct | 62375720 |
9 | 26815020 |
10 | 13237200 |
11 | 7521339 |
12 | 4524500 |
13 | 2986182 |
14 | 1a880a4 |
15 | 1267200 |
hex | c9fbd0 |
13237200 has 90 divisors (see below), whose sum is σ = 45949254. Its totient is φ = 3528960.
The previous prime is 13237199. The next prime is 13237201. The reversal of 13237200 is 273231.
It is an interprime number because it is at equal distance from previous prime (13237199) and next prime (13237201).
It can be written as a sum of positive squares in 3 ways, for example, as 2108304 + 11128896 = 1452^2 + 3336^2 .
It is a tau number, because it is divible by the number of its divisors (90).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13237201) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1762 + ... + 5438.
Almost surely, 213237200 is an apocalyptic number.
13237200 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 13237200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22974627).
13237200 is an abundant number, since it is smaller than the sum of its proper divisors (32712054).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13237200 is a wasteful number, since it uses less digits than its factorization.
13237200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3701 (or 3687 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 18.
The square root of 13237200 is about 3638.2963045909. The cubic root of 13237200 is about 236.5549517935.
The spelling of 13237200 in words is "thirteen million, two hundred thirty-seven thousand, two hundred".
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