Base | Representation |
---|---|
bin | 110010100001… |
… | …110000001010 |
3 | 220220221100020 |
4 | 302201300022 |
5 | 11342323300 |
6 | 1151521310 |
7 | 220404321 |
oct | 62416012 |
9 | 26827306 |
10 | 13245450 |
11 | 7527559 |
12 | 4529236 |
13 | 2989b5a |
14 | 1a8b0b8 |
15 | 12698a0 |
hex | ca1c0a |
13245450 has 48 divisors (see below), whose sum is σ = 33078240. Its totient is φ = 3507520.
The previous prime is 13245437. The next prime is 13245457. The reversal of 13245450 is 5454231.
It is a self number, because there is not a number n which added to its sum of digits gives 13245450.
It is not an unprimeable number, because it can be changed into a prime (13245457) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33856 + ... + 34244.
It is an arithmetic number, because the mean of its divisors is an integer number (689130).
Almost surely, 213245450 is an apocalyptic number.
13245450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13245450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16539120).
13245450 is an abundant number, since it is smaller than the sum of its proper divisors (19832790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13245450 is a wasteful number, since it uses less digits than its factorization.
13245450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 631 (or 626 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 13245450 is about 3639.4299004102. The cubic root of 13245450 is about 236.6040853730.
Adding to 13245450 its reverse (5454231), we get a palindrome (18699681).
It can be divided in two parts, 13245 and 450, that added together give a triangular number (13695 = T165).
The spelling of 13245450 in words is "thirteen million, two hundred forty-five thousand, four hundred fifty".
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