Base | Representation |
---|---|
bin | 1101101111010100000111… |
… | …10111011100100010000000 |
3 | 10221222100001202221021210021 |
4 | 12313222003313130202000 |
5 | 12430002222122411034 |
6 | 144131355524143224 |
7 | 6235550416221406 |
oct | 667520367344200 |
9 | 127870052837707 |
10 | 30213012310144 |
11 | 96992a2885484 |
12 | 347b598837b14 |
13 | 13b20c8550311 |
14 | 7664636bd476 |
15 | 375d9a7d26b4 |
hex | 1b7a83ddc880 |
30213012310144 has 64 divisors (see below), whose sum is σ = 62079244732800. Its totient is φ = 14638703795200.
The previous prime is 30213012310093. The next prime is 30213012310157. The reversal of 30213012310144 is 44101321031203.
It is a tau number, because it is divible by the number of its divisors (64).
It is a super-2 number, since 2×302130123101442 (a number of 28 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24254314 + ... + 25469545.
It is an arithmetic number, because the mean of its divisors is an integer number (969988198950).
Almost surely, 230213012310144 is an apocalyptic number.
It is an amenable number.
30213012310144 is an abundant number, since it is smaller than the sum of its proper divisors (31866232422656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213012310144 is a wasteful number, since it uses less digits than its factorization.
30213012310144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49724021 (or 49724009 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 25.
Adding to 30213012310144 its reverse (44101321031203), we get a palindrome (74314333341347).
The spelling of 30213012310144 in words is "thirty trillion, two hundred thirteen billion, twelve million, three hundred ten thousand, one hundred forty-four".
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