Base | Representation |
---|---|
bin | 11011111101010110… |
… | …000100010000010100 |
3 | 2212111011100101111220 |
4 | 123331112010100110 |
5 | 442440134132040 |
6 | 21442513330340 |
7 | 2111633460003 |
oct | 337526042024 |
9 | 85434311456 |
10 | 30020224020 |
11 | 118056a76a6 |
12 | 59998669b0 |
13 | 2aa5626487 |
14 | 164add0c3a |
15 | baa7c12d0 |
hex | 6fd584414 |
30020224020 has 96 divisors (see below), whose sum is σ = 85745928576. Its totient is φ = 7845465600.
The previous prime is 30020224007. The next prime is 30020224033. The reversal of 30020224020 is 2042202003.
It is an interprime number because it is at equal distance from previous prime (30020224007) and next prime (30020224033).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999015 + ... + 1028625.
It is an arithmetic number, because the mean of its divisors is an integer number (893186756).
Almost surely, 230020224020 is an apocalyptic number.
30020224020 is a gapful number since it is divisible by the number (30) 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 30020224020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42872964288).
30020224020 is an abundant number, since it is smaller than the sum of its proper divisors (55725704556).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30020224020 is a wasteful number, since it uses less digits than its factorization.
30020224020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29961 (or 29959 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 15.
Adding to 30020224020 its reverse (2042202003), we get a palindrome (32062426023).
The spelling of 30020224020 in words is "thirty billion, twenty million, two hundred twenty-four thousand, twenty".
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