Base | Representation |
---|---|
bin | 111010000101000111110… |
… | …010010010010010000000 |
3 | 112010120001121110211201110 |
4 | 322011013302102102000 |
5 | 1010343014104414100 |
6 | 12253313440403320 |
7 | 561233242406202 |
oct | 72050762222200 |
9 | 15116047424643 |
10 | 3991228982400 |
11 | 12a97417892a0 |
12 | 54563a616540 |
13 | 22c4a990c4aa |
14 | db2684d2772 |
15 | 6dc4ae60250 |
hex | 3a147c92480 |
3991228982400 has 768 divisors, whose sum is σ = 14861905920000. Its totient is φ = 932559667200.
The previous prime is 3991228982399. The next prime is 3991228982413. The reversal of 3991228982400 is 42898221993.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3120584961 + ... + 3120586239.
It is an arithmetic number, because the mean of its divisors is an integer number (19351440000).
Almost surely, 23991228982400 is an apocalyptic number.
3991228982400 is a gapful number since it is divisible by the number (30) 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 3991228982400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7430952960000).
3991228982400 is an abundant number, since it is smaller than the sum of its proper divisors (10870676937600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3991228982400 is a wasteful number, since it uses less digits than its factorization.
3991228982400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2365 (or 2348 counting only the distinct ones).
The product of its (nonzero) digits is 4478976, while the sum is 57.
The spelling of 3991228982400 in words is "three trillion, nine hundred ninety-one billion, two hundred twenty-eight million, nine hundred eighty-two thousand, four hundred".
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