Base | Representation |
---|---|
bin | 111011110010001110… |
… | …1111010100011011001 |
3 | 110021101111222101011212 |
4 | 1313210131322203121 |
5 | 4100414044130331 |
6 | 134551421032505 |
7 | 12163360222421 |
oct | 1674435724331 |
9 | 407344871155 |
10 | 128387098841 |
11 | 4a4a3196671 |
12 | 20a706b5735 |
13 | c1509a2851 |
14 | 62dd1b7481 |
15 | 3516466d2b |
hex | 1de477a8d9 |
128387098841 has 8 divisors (see below), whose sum is σ = 129176988864. Its totient is φ = 127597460400.
The previous prime is 128387098817. The next prime is 128387098843. The reversal of 128387098841 is 148890783821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-128387098841 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (128387098843) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017731 + ... + 1136903.
It is an arithmetic number, because the mean of its divisors is an integer number (16147123608).
Almost surely, 2128387098841 is an apocalyptic number.
It is an amenable number.
128387098841 is a deficient number, since it is larger than the sum of its proper divisors (789890023).
128387098841 is a wasteful number, since it uses less digits than its factorization.
128387098841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125791.
The product of its (nonzero) digits is 6193152, while the sum is 59.
The spelling of 128387098841 in words is "one hundred twenty-eight billion, three hundred eighty-seven million, ninety-eight thousand, eight hundred forty-one".
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