Base | Representation |
---|---|
bin | 1110000010011101110000… |
… | …10110001110111101100110 |
3 | 11001022020111122202011221220 |
4 | 13001032320112032331212 |
5 | 13021242323313330200 |
6 | 145353541352321210 |
7 | 6334233503101323 |
oct | 701167026167546 |
9 | 131266448664856 |
10 | 30871022792550 |
11 | 9922366619016 |
12 | 35670170a3206 |
13 | 142c1816c0955 |
14 | 78a2460c9b4a |
15 | 38805d3b14a0 |
hex | 1c13b858ef66 |
30871022792550 has 48 divisors (see below), whose sum is σ = 77857765980480. Its totient is φ = 8092742695840.
The previous prime is 30871022792513. The next prime is 30871022792677. The reversal of 30871022792550 is 5529722017803.
It is a junction number, because it is equal to n+sod(n) for n = 30871022792493 and 30871022792502.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1744116732 + ... + 1744134431.
It is an arithmetic number, because the mean of its divisors is an integer number (1622036791260).
Almost surely, 230871022792550 is an apocalyptic number.
30871022792550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30871022792550 is an abundant number, since it is smaller than the sum of its proper divisors (46986743187930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30871022792550 is a wasteful number, since it uses less digits than its factorization.
30871022792550 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3488251237 (or 3488251232 counting only the distinct ones).
The product of its (nonzero) digits is 2116800, while the sum is 51.
The spelling of 30871022792550 in words is "thirty trillion, eight hundred seventy-one billion, twenty-two million, seven hundred ninety-two thousand, five hundred fifty".
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