| Base | Representation |
|---|---|
| bin | 1101010010000000000… |
| … | …0001100011101001100 |
| 3 | 210210221120110112112200 |
| 4 | 3110200000030131030 |
| 5 | 12214243032013440 |
| 6 | 252453035001500 |
| 7 | 22325161413543 |
| oct | 3244000143514 |
| 9 | 723846415480 |
| 10 | 228170188620 |
| 11 | 88848139920 |
| 12 | 38279899290 |
| 13 | 1869358703a |
| 14 | b0874d315a |
| 15 | 5e06606c30 |
| hex | 352000c74c |
228170188620 has 144 divisors (see below), whose sum is σ = 756033052320. Its totient is φ = 55240934400.
The previous prime is 228170188619. The next prime is 228170188621. The reversal of 228170188620 is 26881071822.
It is a happy number.
228170188620 is a `hidden beast` number, since 2 + 2 + 8 + 1 + 7 + 0 + 18 + 8 + 620 = 666.
It is an interprime number because it is at equal distance from previous prime (228170188619) and next prime (228170188621).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (228170188621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1431066 + ... + 1582494.
It is an arithmetic number, because the mean of its divisors is an integer number (5250229530).
Almost surely, 2228170188620 is an apocalyptic number.
228170188620 is a gapful number since it is divisible by the number (20) 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 228170188620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378016526160).
228170188620 is an abundant number, since it is smaller than the sum of its proper divisors (527862863700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
228170188620 is a wasteful number, since it uses less digits than its factorization.
228170188620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 152216 (or 152211 counting only the distinct ones).
The product of its (nonzero) digits is 172032, while the sum is 45.
The spelling of 228170188620 in words is "two hundred twenty-eight billion, one hundred seventy million, one hundred eighty-eight thousand, six hundred twenty".
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