Base | Representation |
---|---|
bin | 1101110000011010111000… |
… | …10000100110101001100100 |
3 | 10222002222010101020000112200 |
4 | 12320031130100212221210 |
5 | 12431113023121202322 |
6 | 144201041350214500 |
7 | 6241364020543233 |
oct | 670153420465144 |
9 | 128088111200480 |
10 | 30251002522212 |
11 | 970341831105a |
12 | 3486a1b654430 |
13 | 13b587110c344 |
14 | 768228da4b1a |
15 | 376d70b218ac |
hex | 1b835c426a64 |
30251002522212 has 18 divisors (see below), whose sum is σ = 76467811931238. Its totient is φ = 10083667507392.
The previous prime is 30251002522201. The next prime is 30251002522219. The reversal of 30251002522212 is 21222520015203.
30251002522212 is a `hidden beast` number, since 3 + 0 + 25 + 100 + 2 + 522 + 2 + 12 = 666.
It can be written as a sum of positive squares in only one way, i.e., 21581840931876 + 8669161590336 = 4645626^2 + 2944344^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is not an unprimeable number, because it can be changed into a prime (30251002522219) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420152812773 + ... + 420152812844.
Almost surely, 230251002522212 is an apocalyptic number.
It is an amenable number.
30251002522212 is an abundant number, since it is smaller than the sum of its proper divisors (46216809409026).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30251002522212 is a wasteful number, since it uses less digits than its factorization.
30251002522212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 840305625627 (or 840305625622 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
Adding to 30251002522212 its reverse (21222520015203), we get a palindrome (51473522537415).
The spelling of 30251002522212 in words is "thirty trillion, two hundred fifty-one billion, two million, five hundred twenty-two thousand, two hundred twelve".
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