Base | Representation |
---|---|
bin | 11100001110101001… |
… | …001001110001000000 |
3 | 2220020101102212222220 |
4 | 130032221021301000 |
5 | 444033433040000 |
6 | 21531401531040 |
7 | 2122056326511 |
oct | 341651116100 |
9 | 86211385886 |
10 | 30310440000 |
11 | 119444a9215 |
12 | 5a5aaa3a80 |
13 | 2b207a9ac9 |
14 | 1677778a08 |
15 | bc5eeb1a0 |
hex | 70ea49c40 |
30310440000 has 280 divisors, whose sum is σ = 100742252160. Its totient is φ = 8040192000.
The previous prime is 30310439981. The next prime is 30310440001. The reversal of 30310440000 is 4401303.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (30310440001) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27479449 + ... + 27480551.
Almost surely, 230310440000 is an apocalyptic number.
30310440000 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 30310440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50371126080).
30310440000 is an abundant number, since it is smaller than the sum of its proper divisors (70431812160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30310440000 is a wasteful number, since it uses less digits than its factorization.
30310440000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1367 (or 1342 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 30310440000 its reverse (4401303), we get a palindrome (30314841303).
The spelling of 30310440000 in words is "thirty billion, three hundred ten million, four hundred forty thousand".
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