Base | Representation |
---|---|
bin | 111011110101000000… |
… | …1000110000010011001 |
3 | 110021122000011202120020 |
4 | 1313222001012002121 |
5 | 4101111413111001 |
6 | 135004544421053 |
7 | 12165600511656 |
oct | 1675201060231 |
9 | 407560152506 |
10 | 128480207001 |
11 | 4a540800163 |
12 | 20a97917789 |
13 | c167072433 |
14 | 630b6d2c2d |
15 | 351e709736 |
hex | 1dea046099 |
128480207001 has 4 divisors (see below), whose sum is σ = 171306942672. Its totient is φ = 85653471332.
The previous prime is 128480206979. The next prime is 128480207003. The reversal of 128480207001 is 100702084821.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 128480207001 - 25 = 128480206969 is a prime.
It is not an unprimeable number, because it can be changed into a prime (128480207003) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21413367831 + ... + 21413367836.
It is an arithmetic number, because the mean of its divisors is an integer number (42826735668).
Almost surely, 2128480207001 is an apocalyptic number.
It is an amenable number.
128480207001 is a deficient number, since it is larger than the sum of its proper divisors (42826735671).
128480207001 is an equidigital number, since it uses as much as digits as its factorization.
128480207001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42826735670.
The product of its (nonzero) digits is 7168, while the sum is 33.
The spelling of 128480207001 in words is "one hundred twenty-eight billion, four hundred eighty million, two hundred seven thousand, one".
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