Base | Representation |
---|---|
bin | 110010011000… |
… | …100100110100 |
3 | 220212000210000 |
4 | 302120210310 |
5 | 11340122420 |
6 | 1151031300 |
7 | 220156611 |
oct | 62304464 |
9 | 26760700 |
10 | 13207860 |
11 | 7501296 |
12 | 450b530 |
13 | 2975a03 |
14 | 1a7b508 |
15 | 125d690 |
hex | c98934 |
13207860 has 120 divisors (see below), whose sum is σ = 42932736. Its totient is φ = 3395520.
The previous prime is 13207823. The next prime is 13207877. The reversal of 13207860 is 6870231.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50089 + ... + 50351.
Almost surely, 213207860 is an apocalyptic number.
13207860 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 13207860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21466368).
13207860 is an abundant number, since it is smaller than the sum of its proper divisors (29724876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13207860 is a wasteful number, since it uses less digits than its factorization.
13207860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315 (or 304 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 13207860 is about 3634.2619608388. The cubic root of 13207860 is about 236.3800493354.
It can be divided in two parts, 1320 and 7860, that added together give a triangular number (9180 = T135).
The spelling of 13207860 in words is "thirteen million, two hundred seven thousand, eight hundred sixty".
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