Base | Representation |
---|---|
bin | 110010001001… |
… | …010000111100 |
3 | 220201211202100 |
4 | 302021100330 |
5 | 11331121043 |
6 | 1145425100 |
7 | 216506022 |
oct | 62112074 |
9 | 26654670 |
10 | 13145148 |
11 | 7469165 |
12 | 449b190 |
13 | 29532c3 |
14 | 1a62712 |
15 | 1249cd3 |
hex | c8943c |
13145148 has 72 divisors (see below), whose sum is σ = 36009792. Its totient is φ = 4027392.
The previous prime is 13145123. The next prime is 13145159. The reversal of 13145148 is 84154131.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28536 + ... + 28992.
It is an arithmetic number, because the mean of its divisors is an integer number (500136).
Almost surely, 213145148 is an apocalyptic number.
13145148 is a gapful number since it is divisible by the number (18) 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 13145148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18004896).
13145148 is an abundant number, since it is smaller than the sum of its proper divisors (22864644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13145148 is a wasteful number, since it uses less digits than its factorization.
13145148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 531 (or 526 counting only the distinct ones).
The product of its digits is 1920, while the sum is 27.
The square root of 13145148 is about 3625.6238083949. The cubic root of 13145148 is about 236.0053383835.
Adding to 13145148 its reverse (84154131), we get a palindrome (97299279).
It can be divided in two parts, 13 and 145148, that added together give a square (145161 = 3812).
The spelling of 13145148 in words is "thirteen million, one hundred forty-five thousand, one hundred forty-eight".
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