Base | Representation |
---|---|
bin | 11011111110000111… |
… | …001110101111010100 |
3 | 2212112001121011112020 |
4 | 123332013032233110 |
5 | 443001434041040 |
6 | 21444053453140 |
7 | 2112151145232 |
oct | 337607165724 |
9 | 85461534466 |
10 | 30033112020 |
11 | 118119aa63a |
12 | 59a20411b0 |
13 | 2aa81b9702 |
14 | 164c9c7952 |
15 | bab9b9cd0 |
hex | 6fe1cebd4 |
30033112020 has 48 divisors (see below), whose sum is σ = 84203927808. Its totient is φ = 7998238080.
The previous prime is 30033111991. The next prime is 30033112049. The reversal of 30033112020 is 2021133003.
It is an interprime number because it is at equal distance from previous prime (30033111991) and next prime (30033112049).
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 15 ways as a sum of consecutive naturals, for example, 285196 + ... + 376035.
It is an arithmetic number, because the mean of its divisors is an integer number (1754248496).
Almost surely, 230033112020 is an apocalyptic number.
30033112020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30033112020 is an abundant number, since it is smaller than the sum of its proper divisors (54170815788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30033112020 is a wasteful number, since it uses less digits than its factorization.
30033112020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 662000 (or 661998 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 30033112020 its reverse (2021133003), we get a palindrome (32054245023).
The spelling of 30033112020 in words is "thirty billion, thirty-three million, one hundred twelve thousand, twenty".
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