Base | Representation |
---|---|
bin | 10111101110001101110… |
… | …001101101110010000100 |
3 | 12202211202102202112012012 |
4 | 113232031301231302010 |
5 | 203202042313201340 |
6 | 3244520150513352 |
7 | 225530106533546 |
oct | 27561561556204 |
9 | 5684672675165 |
10 | 1630171225220 |
11 | 57939618156a |
12 | 223b31065858 |
13 | ba95590c025 |
14 | 58c87787696 |
15 | 2c610281565 |
hex | 17b8dc6dc84 |
1630171225220 has 24 divisors (see below), whose sum is σ = 3427354194264. Its totient is φ = 651307609856.
The previous prime is 1630171225213. The next prime is 1630171225223. The reversal of 1630171225220 is 225221710361.
It can be written as a sum of positive squares in 4 ways, for example, as 428354542144 + 1201816683076 = 654488^2 + 1096274^2 .
It is not an unprimeable number, because it can be changed into a prime (1630171225223) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47537447 + ... + 47571726.
It is an arithmetic number, because the mean of its divisors is an integer number (142806424761).
Almost surely, 21630171225220 is an apocalyptic number.
1630171225220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1630171225220 is an abundant number, since it is smaller than the sum of its proper divisors (1797182969044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1630171225220 is a wasteful number, since it uses less digits than its factorization.
1630171225220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95110039 (or 95110037 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
Adding to 1630171225220 its reverse (225221710361), we get a palindrome (1855392935581).
The spelling of 1630171225220 in words is "one trillion, six hundred thirty billion, one hundred seventy-one million, two hundred twenty-five thousand, two hundred twenty".
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