Base | Representation |
---|---|
bin | 11100000101011001… |
… | …000100100000001011 |
3 | 2212211120101100210120 |
4 | 130011121010200023 |
5 | 443224214313240 |
6 | 21504135114323 |
7 | 2115163135050 |
oct | 340531044013 |
9 | 85746340716 |
10 | 30155229195 |
11 | 11874928023 |
12 | 5a16b129a3 |
13 | 2ac75a51b0 |
14 | 1660cd5027 |
15 | bb758cad0 |
hex | 70564480b |
30155229195 has 64 divisors (see below), whose sum is σ = 60831074304. Its totient is φ = 12414458880.
The previous prime is 30155229193. The next prime is 30155229233. The reversal of 30155229195 is 59192255103.
It is not a de Polignac number, because 30155229195 - 21 = 30155229193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30155229191) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 213447 + ... + 325376.
It is an arithmetic number, because the mean of its divisors is an integer number (950485536).
Almost surely, 230155229195 is an apocalyptic number.
30155229195 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30155229195 is an abundant number, since it is smaller than the sum of its proper divisors (30675845109).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30155229195 is a wasteful number, since it uses less digits than its factorization.
30155229195 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 538892.
The product of its (nonzero) digits is 121500, while the sum is 42.
The spelling of 30155229195 in words is "thirty billion, one hundred fifty-five million, two hundred twenty-nine thousand, one hundred ninety-five".
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