| Base | Representation |
|---|---|
| bin | 1011111000110110100… |
| … | …1110001010110100100 |
| 3 | 201112011211121000122000 |
| 4 | 2332031221301112210 |
| 5 | 11321240420003140 |
| 6 | 233454312005300 |
| 7 | 20520154234161 |
| oct | 2761551612644 |
| 9 | 645154530560 |
| 10 | 204240000420 |
| 11 | 79688179285 |
| 12 | 336bb690830 |
| 13 | 1634b891971 |
| 14 | 9c5726b068 |
| 15 | 54a5805a30 |
| hex | 2f8da715a4 |
204240000420 has 96 divisors (see below), whose sum is σ = 635844867840. Its totient is φ = 54427011840.
The previous prime is 204240000413. The next prime is 204240000427. The reversal of 204240000420 is 24000042402.
204240000420 is a `hidden beast` number, since 2 + 0 + 4 + 240 + 0 + 0 + 0 + 420 = 666.
It is an interprime number because it is at equal distance from previous prime (204240000413) and next prime (204240000427).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 204240000393 and 204240000402.
It is not an unprimeable number, because it can be changed into a prime (204240000427) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672049 + ... + 927431.
It is an arithmetic number, because the mean of its divisors is an integer number (6623384040).
Almost surely, 2204240000420 is an apocalyptic number.
204240000420 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 204240000420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317922433920).
204240000420 is an abundant number, since it is smaller than the sum of its proper divisors (431604867420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
204240000420 is a wasteful number, since it uses less digits than its factorization.
204240000420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 256882 (or 256874 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 18.
Adding to 204240000420 its reverse (24000042402), we get a palindrome (228240042822).
The spelling of 204240000420 in words is "two hundred four billion, two hundred forty million, four hundred twenty", and thus it is an aban number.
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