Base | Representation |
---|---|
bin | 11100000001000000… |
… | …100011111000010010 |
3 | 2212122110000110012010 |
4 | 130001000203320102 |
5 | 443101403222000 |
6 | 21452551043350 |
7 | 2113311122265 |
oct | 340100437022 |
9 | 85573013163 |
10 | 30081695250 |
11 | 11837372972 |
12 | 59b6370556 |
13 | 2ab5299c99 |
14 | 1655232cdc |
15 | bb0db4d50 |
hex | 701023e12 |
30081695250 has 32 divisors (see below), whose sum is σ = 75083913216. Its totient is φ = 8021785200.
The previous prime is 30081695221. The next prime is 30081695263. The reversal of 30081695250 is 5259618003.
It is a super-2 number, since 2×300816952502 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30081695199 and 30081695208.
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, 20053714 + ... + 20055213.
It is an arithmetic number, because the mean of its divisors is an integer number (2346372288).
Almost surely, 230081695250 is an apocalyptic number.
30081695250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30081695250 is an abundant number, since it is smaller than the sum of its proper divisors (45002217966).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30081695250 is a wasteful number, since it uses less digits than its factorization.
30081695250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40108947 (or 40108937 counting only the distinct ones).
The product of its (nonzero) digits is 64800, while the sum is 39.
The spelling of 30081695250 in words is "thirty billion, eighty-one million, six hundred ninety-five thousand, two hundred fifty".
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