| Base | Representation |
|---|---|
| bin | 10100101000110… |
| … | …01101011011100 |
| 3 | 110001202102022000 |
| 4 | 22110121223130 |
| 5 | 323304321340 |
| 6 | 25102322300 |
| 7 | 4201332450 |
| oct | 1224315334 |
| 9 | 401672260 |
| 10 | 173120220 |
| 11 | 897a3869 |
| 12 | 49b89390 |
| 13 | 29b35600 |
| 14 | 18dc6660 |
| 15 | 102e9d30 |
| hex | a519adc |
173120220 has 288 divisors, whose sum is σ = 668989440. Its totient is φ = 36391680.
The previous prime is 173120209. The next prime is 173120239. The reversal of 173120220 is 22021371.
173120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1731202202 = 59941221145696800, which contains 22 as substring.
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 = 173120193 and 173120202.
It is a congruent 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, 638685 + ... + 638955.
It is an arithmetic number, because the mean of its divisors is an integer number (2322880).
Almost surely, 2173120220 is an apocalyptic number.
173120220 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 173120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334494720).
173120220 is an abundant number, since it is smaller than the sum of its proper divisors (495869220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
173120220 is a wasteful number, since it uses less digits than its factorization.
173120220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 322 (or 301 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 173120220 is about 13157.5157229623. The cubic root of 173120220 is about 557.3345054970.
Adding to 173120220 its reverse (22021371), we get a palindrome (195141591).
The spelling of 173120220 in words is "one hundred seventy-three million, one hundred twenty thousand, two hundred twenty".
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