Base | Representation |
---|---|
bin | 11100000011011111… |
… | …000101110111010000 |
3 | 2212202100012210222110 |
4 | 130003133011313100 |
5 | 443143023100300 |
6 | 21501033505320 |
7 | 2114324266425 |
oct | 340337056720 |
9 | 85670183873 |
10 | 30123253200 |
11 | 11858877a87 |
12 | 5a08272240 |
13 | 2ac0a8a9a1 |
14 | 165a96dd4c |
15 | bb4873550 |
hex | 7037c5dd0 |
30123253200 has 60 divisors (see below), whose sum is σ = 96494824928. Its totient is φ = 8032867200.
The previous prime is 30123253187. The next prime is 30123253229. The reversal of 30123253200 is 235232103.
It is a tau number, because it is divible by the number of its divisors (60).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12550156 + ... + 12552555.
Almost surely, 230123253200 is an apocalyptic number.
30123253200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30123253200 is an abundant number, since it is smaller than the sum of its proper divisors (66371571728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30123253200 is a wasteful number, since it uses less digits than its factorization.
30123253200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25102732 (or 25102721 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 21.
Adding to 30123253200 its reverse (235232103), we get a palindrome (30358485303).
The spelling of 30123253200 in words is "thirty billion, one hundred twenty-three million, two hundred fifty-three thousand, two hundred".
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