| Base | Representation |
|---|---|
| bin | 10011110100010… |
| … | …11010111010000 |
| 3 | 102120211011102100 |
| 4 | 21322023113100 |
| 5 | 320024331330 |
| 6 | 24255120400 |
| 7 | 4056031515 |
| oct | 1172132720 |
| 9 | 376734370 |
| 10 | 166245840 |
| 11 | 85928a62 |
| 12 | 47813100 |
| 13 | 28599627 |
| 14 | 1811730c |
| 15 | e8dd060 |
| hex | 9e8b5d0 |
166245840 has 120 divisors (see below), whose sum is σ = 582641280. Its totient is φ = 42400512.
The previous prime is 166245829. The next prime is 166245841. The reversal of 166245840 is 48542661.
166245840 is a `hidden beast` number, since 16 + 62 + 4 + 584 + 0 = 666.
166245840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 166245795 and 166245804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (166245841) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11541 + ... + 21579.
It is an arithmetic number, because the mean of its divisors is an integer number (4855344).
Almost surely, 2166245840 is an apocalyptic number.
166245840 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 166245840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291320640).
166245840 is an abundant number, since it is smaller than the sum of its proper divisors (416395440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
166245840 is a wasteful number, since it uses less digits than its factorization.
166245840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10081 (or 10072 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The square root of 166245840 is about 12893.6356393377. The cubic root of 166245840 is about 549.8576380854.
The spelling of 166245840 in words is "one hundred sixty-six million, two hundred forty-five thousand, eight hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •