Base | Representation |
---|---|
bin | 1000111100010000… |
… | …1100001001110000 |
3 | 20012021110211121200 |
4 | 2033010030021300 |
5 | 14403430141430 |
6 | 1034101251200 |
7 | 113323463646 |
oct | 21704141160 |
9 | 6167424550 |
10 | 2400240240 |
11 | 1021967022 |
12 | 56ba03b00 |
13 | 2c33710c8 |
14 | 18aac3196 |
15 | e0ac2460 |
hex | 8f10c270 |
2400240240 has 120 divisors (see below), whose sum is σ = 8080472400. Its totient is φ = 638502912.
The previous prime is 2400240239. The next prime is 2400240257. The reversal of 2400240240 is 420420042.
2400240240 is a `hidden beast` number, since 2 + 400 + 24 + 0 + 240 = 666.
It is a tau number, because it is divible by the number of its divisors (120).
It is a super-2 number, since 2×24002402402 = 11522306419430515200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
2400240240 is a modest number, since divided by 240240 gives 2400 as remainder.
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, 307911 + ... + 315609.
It is an arithmetic number, because the mean of its divisors is an integer number (67337270).
Almost surely, 22400240240 is an apocalyptic number.
2400240240 is a gapful number since it is divisible by the number (20) 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 2400240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4040236200).
2400240240 is an abundant number, since it is smaller than the sum of its proper divisors (5680232160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2400240240 is a wasteful number, since it uses less digits than its factorization.
2400240240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8151 (or 8142 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 18.
The square root of 2400240240 is about 48992.2467335394. The cubic root of 2400240240 is about 1338.9105721660.
Adding to 2400240240 its reverse (420420042), we get a palindrome (2820660282).
The spelling of 2400240240 in words is "two billion, four hundred million, two hundred forty thousand, two hundred forty".
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