Base | Representation |
---|---|
bin | 11100000010000111… |
… | …100010101010110000 |
3 | 2212200202000210112222 |
4 | 130002013202222300 |
5 | 443121134140022 |
6 | 21454453540212 |
7 | 2113625231000 |
oct | 340207425260 |
9 | 85622023488 |
10 | 30100302512 |
11 | 11846921875 |
12 | 5a00644668 |
13 | 2ab90b34b7 |
14 | 16578b8000 |
15 | bb283d242 |
hex | 7021e2ab0 |
30100302512 has 160 divisors (see below), whose sum is σ = 72185856000. Its totient is φ = 12119611392.
The previous prime is 30100302511. The next prime is 30100302539. The reversal of 30100302512 is 21520300103.
It is a super-2 number, since 2×301003025122 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30100302511) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13241408 + ... + 13243680.
It is an arithmetic number, because the mean of its divisors is an integer number (451161600).
Almost surely, 230100302512 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30100302512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36092928000).
30100302512 is an abundant number, since it is smaller than the sum of its proper divisors (42085553488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30100302512 is a wasteful number, since it uses less digits than its factorization.
30100302512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2448 (or 2428 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 17.
Adding to 30100302512 its reverse (21520300103), we get a palindrome (51620602615).
The spelling of 30100302512 in words is "thirty billion, one hundred million, three hundred two thousand, five hundred twelve".
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