Base | Representation |
---|---|
bin | 11011111101010110… |
… | …001000000001111000 |
3 | 2212111011101011201111 |
4 | 123331112020001320 |
5 | 442440140130410 |
6 | 21442513530104 |
7 | 2111633553040 |
oct | 337526100170 |
9 | 85434334644 |
10 | 30020239480 |
11 | 11805708280 |
12 | 5999873934 |
13 | 2aa563051a |
14 | 164add6720 |
15 | baa7c5b8a |
hex | 6fd588078 |
30020239480 has 128 divisors (see below), whose sum is σ = 89166458880. Its totient is φ = 8806533120.
The previous prime is 30020239439. The next prime is 30020239481. The reversal of 30020239480 is 8493202003.
It is a super-3 number, since 3×300202394803 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30020239481) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234312 + ... + 339031.
It is an arithmetic number, because the mean of its divisors is an integer number (696612960).
Almost surely, 230020239480 is an apocalyptic number.
It is an amenable number.
30020239480 is an abundant number, since it is smaller than the sum of its proper divisors (59146219400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30020239480 is a wasteful number, since it uses less digits than its factorization.
30020239480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 573389 (or 573385 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 31.
The spelling of 30020239480 in words is "thirty billion, twenty million, two hundred thirty-nine thousand, four hundred eighty".
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