Base | Representation |
---|---|
bin | 110001111110… |
… | …110000101000 |
3 | 220122122201201 |
4 | 301332300220 |
5 | 11323231440 |
6 | 1144453544 |
7 | 216236413 |
oct | 61766050 |
9 | 26578651 |
10 | 13102120 |
11 | 74398a9 |
12 | 447a2b4 |
13 | 2939845 |
14 | 1a50b7a |
15 | 123c19a |
hex | c7ec28 |
13102120 has 16 divisors (see below), whose sum is σ = 29479860. Its totient is φ = 5240832.
The previous prime is 13102099. The next prime is 13102139. The reversal of 13102120 is 2120131.
13102120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 10797796 + 2304324 = 3286^2 + 1518^2 .
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 13102097 and 13102106.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163737 + ... + 163816.
Almost surely, 213102120 is an apocalyptic number.
13102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13102120 is an abundant number, since it is smaller than the sum of its proper divisors (16377740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13102120 is a wasteful number, since it uses less digits than its factorization.
13102120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 327564 (or 327560 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 13102120 is about 3619.6850691738. The cubic root of 13102120 is about 235.7475515602.
Adding to 13102120 its reverse (2120131), we get a palindrome (15222251).
The spelling of 13102120 in words is "thirteen million, one hundred two thousand, one hundred twenty".
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