Base | Representation |
---|---|
bin | 110001101010… |
… | …110000001000 |
3 | 220111111022110 |
4 | 301222300020 |
5 | 11313121133 |
6 | 1143022320 |
7 | 215445450 |
oct | 61526010 |
9 | 26444273 |
10 | 13020168 |
11 | 7393277 |
12 | 443a9a0 |
13 | 290b455 |
14 | 1a2cd60 |
15 | 1222c63 |
hex | c6ac08 |
13020168 has 64 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 3523392.
The previous prime is 13020157. The next prime is 13020169. The reversal of 13020168 is 86102031.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13020169) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153 + ... + 5231.
It is an arithmetic number, because the mean of its divisors is an integer number (612000).
Almost surely, 213020168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13020168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19584000).
13020168 is an abundant number, since it is smaller than the sum of its proper divisors (26147832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13020168 is a wasteful number, since it uses less digits than its factorization.
13020168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4114 (or 4110 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 13020168 is about 3608.3469899665. The cubic root of 13020168 is about 235.2550000951.
Adding to 13020168 its reverse (86102031), we get a palindrome (99122199).
The spelling of 13020168 in words is "thirteen million, twenty thousand, one hundred sixty-eight".
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