Base | Representation |
---|---|
bin | 1101101111001100000100… |
… | …00011010101000111000110 |
3 | 10221221220220022220212200110 |
4 | 12313212002003111013012 |
5 | 12424414342321410000 |
6 | 144125402411453450 |
7 | 6235335264661215 |
oct | 667460203250706 |
9 | 127856808825613 |
10 | 30208686903750 |
11 | 9697483244653 |
12 | 347a790157286 |
13 | 13b18893a6954 |
14 | 76617306107c |
15 | 375be5bd0850 |
hex | 1b79820d51c6 |
30208686903750 has 80 divisors (see below), whose sum is σ = 78100914394800. Its totient is φ = 7777868784000.
The previous prime is 30208686903709. The next prime is 30208686903781. The reversal of 30208686903750 is 5730968680203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138781765 + ... + 138999264.
It is an arithmetic number, because the mean of its divisors is an integer number (976261429935).
Almost surely, 230208686903750 is an apocalyptic number.
30208686903750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30208686903750 is an abundant number, since it is smaller than the sum of its proper divisors (47892227491050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30208686903750 is a wasteful number, since it uses less digits than its factorization.
30208686903750 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 277781083 (or 277781068 counting only the distinct ones).
The product of its (nonzero) digits is 13063680, while the sum is 57.
The spelling of 30208686903750 in words is "thirty trillion, two hundred eight billion, six hundred eighty-six million, nine hundred three thousand, seven hundred fifty".
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