Base | Representation |
---|---|
bin | 11011111101111100… |
… | …010101010010010100 |
3 | 2212111212020000210000 |
4 | 123331330111102110 |
5 | 443000221132002 |
6 | 21443512331300 |
7 | 2112114646404 |
oct | 337574252224 |
9 | 85455200700 |
10 | 30030255252 |
11 | 11810329278 |
12 | 59a10a3b30 |
13 | 2aa772930a |
14 | 164c482804 |
15 | bab60361c |
hex | 6fdf15494 |
30030255252 has 30 divisors (see below), whose sum is σ = 78505019978. Its totient is φ = 10010084976.
The previous prime is 30030255239. The next prime is 30030255259. The reversal of 30030255252 is 25255203003.
30030255252 is a `hidden beast` number, since 30 + 0 + 30 + 2 + 552 + 52 = 666.
It can be written as a sum of positive squares in only one way, i.e., 15149671056 + 14880584196 = 123084^2 + 121986^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030255259) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 46342663 + ... + 46343310.
Almost surely, 230030255252 is an apocalyptic number.
It is an amenable number.
30030255252 is an abundant number, since it is smaller than the sum of its proper divisors (48474764726).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030255252 is a wasteful number, since it uses less digits than its factorization.
30030255252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92685989 (or 92685978 counting only the distinct ones).
The product of its (nonzero) digits is 9000, while the sum is 27.
Adding to 30030255252 its reverse (25255203003), we get a palindrome (55285458255).
The spelling of 30030255252 in words is "thirty billion, thirty million, two hundred fifty-five thousand, two hundred fifty-two".
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