Base | Representation |
---|---|
bin | 100100010111011… |
… | …0011101110010000 |
3 | 10011001002002220220 |
4 | 1020232303232100 |
5 | 4444334330112 |
6 | 321025433040 |
7 | 42144532650 |
oct | 11056635620 |
9 | 3131062826 |
10 | 1220230032 |
11 | 57687397a |
12 | 2a079b780 |
13 | 165a58508 |
14 | b80b8360 |
15 | 721d498c |
hex | 48bb3b90 |
1220230032 has 40 divisors (see below), whose sum is σ = 3602584896. Its totient is φ = 348637056.
The previous prime is 1220230019. The next prime is 1220230043. The reversal of 1220230032 is 2300320221.
It is a super-2 number, since 2×12202300322 = 2977922661989442048, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1220229993 and 1220230020.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815483 + ... + 1816154.
Almost surely, 21220230032 is an apocalyptic number.
1220230032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1220230032 is an abundant number, since it is smaller than the sum of its proper divisors (2382354864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220230032 is a wasteful number, since it uses less digits than its factorization.
1220230032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3631655 (or 3631649 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 1220230032 is about 34931.7911364419. The cubic root of 1220230032 is about 1068.5968833139.
Adding to 1220230032 its reverse (2300320221), we get a palindrome (3520550253).
The spelling of 1220230032 in words is "one billion, two hundred twenty million, two hundred thirty thousand, thirty-two".
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