Base | Representation |
---|---|
bin | 11000101010010101… |
… | …01011110010001000 |
3 | 1021011201102220202200 |
4 | 30111022223302020 |
5 | 204103421233300 |
6 | 10025443400200 |
7 | 646046230434 |
oct | 142512536210 |
9 | 37151386680 |
10 | 13240024200 |
11 | 5684715167 |
12 | 2696083060 |
13 | 1330030860 |
14 | 8d85a99c4 |
15 | 527565200 |
hex | 3152abc88 |
13240024200 has 144 divisors (see below), whose sum is σ = 47884838820. Its totient is φ = 3259077120.
The previous prime is 13240024199. The next prime is 13240024207. The reversal of 13240024200 is 242004231.
13240024200 is a `hidden beast` number, since 1 + 3 + 240 + 0 + 2 + 420 + 0 = 666.
It can be written as a sum of positive squares in 6 ways, for example, as 770728644 + 12469295556 = 27762^2 + 111666^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (13240024207) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 259507 + ... + 306306.
Almost surely, 213240024200 is an apocalyptic number.
13240024200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13240024200 is an abundant number, since it is smaller than the sum of its proper divisors (34644814620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13240024200 is a wasteful number, since it uses less digits than its factorization.
13240024200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 565848 (or 565836 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
Adding to 13240024200 its reverse (242004231), we get a palindrome (13482028431).
The spelling of 13240024200 in words is "thirteen billion, two hundred forty million, twenty-four thousand, two hundred".
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