Base | Representation |
---|---|
bin | 110010011001… |
… | …101100100010 |
3 | 220212021002000 |
4 | 302121230202 |
5 | 11340244300 |
6 | 1151104430 |
7 | 220206156 |
oct | 62315442 |
9 | 26767060 |
10 | 13212450 |
11 | 7504789 |
12 | 4512116 |
13 | 2977b24 |
14 | 1a7d066 |
15 | 125ec00 |
hex | c99b22 |
13212450 has 48 divisors (see below), whose sum is σ = 36411360. Its totient is φ = 3522960.
The previous prime is 13212443. The next prime is 13212491. The reversal of 13212450 is 5421231.
13212450 is a `hidden beast` number, since 1 + 3 + 212 + 450 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3544 + ... + 6243.
It is an arithmetic number, because the mean of its divisors is an integer number (758570).
Almost surely, 213212450 is an apocalyptic number.
13212450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13212450 is an abundant number, since it is smaller than the sum of its proper divisors (23198910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13212450 is a wasteful number, since it uses less digits than its factorization.
13212450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9808 (or 9797 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 13212450 is about 3634.8933959609. The cubic root of 13212450 is about 236.4074284558.
Adding to 13212450 its reverse (5421231), we get a palindrome (18633681).
The spelling of 13212450 in words is "thirteen million, two hundred twelve thousand, four hundred fifty".
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