| Base | Representation |
|---|---|
| bin | 10011100000101… |
| … | …00010011110000 |
| 3 | 102101221211202000 |
| 4 | 21300110103300 |
| 5 | 313344123130 |
| 6 | 24123454000 |
| 7 | 4025044614 |
| oct | 1160242360 |
| 9 | 371854660 |
| 10 | 163661040 |
| 11 | 84422a64 |
| 12 | 46987300 |
| 13 | 27ba2c6a |
| 14 | 17a43344 |
| 15 | e57c260 |
| hex | 9c144f0 |
163661040 has 160 divisors (see below), whose sum is σ = 597015360. Its totient is φ = 41066496.
The previous prime is 163661021. The next prime is 163661063. The reversal of 163661040 is 40166361.
163661040 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 610 + 40 = 666.
163661040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 163660995 and 163661013.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 34492 + ... + 38948.
It is an arithmetic number, because the mean of its divisors is an integer number (3731346).
Almost surely, 2163661040 is an apocalyptic number.
163661040 is a gapful number since it is divisible by the number (10) 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 163661040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298507680).
163661040 is an abundant number, since it is smaller than the sum of its proper divisors (433354320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
163661040 is a wasteful number, since it uses less digits than its factorization.
163661040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4496 (or 4484 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 163661040 is about 12793.0074650178. The cubic root of 163661040 is about 546.9930003438.
The spelling of 163661040 in words is "one hundred sixty-three million, six hundred sixty-one thousand, forty".
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