Base | Representation |
---|---|
bin | 11011111101111111… |
… | …001011001100011110 |
3 | 2212111220121212212020 |
4 | 123331333023030132 |
5 | 443000414002400 |
6 | 21443540321010 |
7 | 2112124201611 |
oct | 337577131436 |
9 | 85456555766 |
10 | 30031000350 |
11 | 1181079805a |
12 | 59a13a3166 |
13 | 2aa792a4c0 |
14 | 164c5d8178 |
15 | bab6ee2a0 |
hex | 6fdfcb31e |
30031000350 has 96 divisors (see below), whose sum is σ = 80265112704. Its totient is φ = 7386787200.
The previous prime is 30031000333. The next prime is 30031000379. The reversal of 30031000350 is 5300013003.
30031000350 is a nontrivial binomial coefficient, being equal to C(245076, 2).
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 47 ways as a sum of consecutive naturals, for example, 3058549 + ... + 3068351.
It is an arithmetic number, because the mean of its divisors is an integer number (836094924).
Almost surely, 230031000350 is an apocalyptic number.
30031000350 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30031000350 is the 245075-th triangular number and also the 122538-th hexagonal number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30031000350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40132556352).
30031000350 is an abundant number, since it is smaller than the sum of its proper divisors (50234112354).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30031000350 is a wasteful number, since it uses less digits than its factorization.
30031000350 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11402 (or 11397 counting only the distinct ones).
The product of its (nonzero) digits is 135, while the sum is 15.
Adding to 30031000350 its reverse (5300013003), we get a palindrome (35331013353).
The spelling of 30031000350 in words is "thirty billion, thirty-one million, three hundred fifty", and thus it is an aban number.
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