Base | Representation |
---|---|
bin | 110010010100… |
… | …111110111001 |
3 | 220211021121000 |
4 | 302110332321 |
5 | 11334140040 |
6 | 1150435213 |
7 | 220065660 |
oct | 62247671 |
9 | 26737530 |
10 | 13193145 |
11 | 74a1229 |
12 | 4502b09 |
13 | 296c0c4 |
14 | 1a75dd7 |
15 | 1259130 |
hex | c94fb9 |
13193145 has 64 divisors (see below), whose sum is σ = 28016640. Its totient is φ = 5759424.
The previous prime is 13193143. The next prime is 13193161. The reversal of 13193145 is 54139131.
13193145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13193145 - 21 = 13193143 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (13193143) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21432 + ... + 22038.
It is an arithmetic number, because the mean of its divisors is an integer number (437760).
Almost surely, 213193145 is an apocalyptic number.
13193145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13193145 is an abundant number, since it is smaller than the sum of its proper divisors (14823495).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13193145 is a wasteful number, since it uses less digits than its factorization.
13193145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 651 (or 645 counting only the distinct ones).
The product of its digits is 1620, while the sum is 27.
The square root of 13193145 is about 3632.2369140793. The cubic root of 13193145 is about 236.2922323090.
The spelling of 13193145 in words is "thirteen million, one hundred ninety-three thousand, one hundred forty-five".
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