| Base | Representation |
|---|---|
| bin | 110000100001111… |
| … | …0100010000001100 |
| 3 | 11012111002210201000 |
| 4 | 1201003310100030 |
| 5 | 11313331443122 |
| 6 | 425330020300 |
| 7 | 55232042625 |
| oct | 14103642014 |
| 9 | 4174083630 |
| 10 | 1628390412 |
| 11 | 766202900 |
| 12 | 395417690 |
| 13 | 1cc49622c |
| 14 | 1163a4a4c |
| 15 | 97e5b0ac |
| hex | 610f440c |
1628390412 has 108 divisors (see below), whose sum is σ = 4653622120. Its totient is φ = 492053760.
The previous prime is 1628390381. The next prime is 1628390417. The reversal of 1628390412 is 2140938261.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
1628390412 is a `hidden beast` number, since 162 + 83 + 9 + 0 + 412 = 666.
It is a tau number, because it is divible by the number of its divisors (108).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1628390417) by changing a digit.
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 35 ways as a sum of consecutive naturals, for example, 4612828 + ... + 4613180.
Almost surely, 21628390412 is an apocalyptic number.
1628390412 is a gapful number since it is divisible by the number (12) 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 1628390412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2326811060).
1628390412 is an abundant number, since it is smaller than the sum of its proper divisors (3025231708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1628390412 is a wasteful number, since it uses less digits than its factorization.
1628390412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 741 (or 369 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 1628390412 is about 40353.3197147397. The cubic root of 1628390412 is about 1176.4844162177.
The spelling of 1628390412 in words is "one billion, six hundred twenty-eight million, three hundred ninety thousand, four hundred twelve".
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