Base | Representation |
---|---|
bin | 10010101010000000… |
… | …000001010101111001 |
3 | 1220201001202002220211 |
4 | 102222000001111321 |
5 | 312011143021101 |
6 | 13111431151121 |
7 | 1306261126306 |
oct | 225200012571 |
9 | 56631662824 |
10 | 20032001401 |
11 | 854a5a7165 |
12 | 3a708154a1 |
13 | 1b73200889 |
14 | d806560ad |
15 | 7c398cc51 |
hex | 4aa001579 |
20032001401 has 8 divisors (see below), whose sum is σ = 20726039880. Its totient is φ = 19338181632.
The previous prime is 20032001393. The next prime is 20032001417. The reversal of 20032001401 is 10410023002.
It can be written as a sum of positive squares in 4 ways, for example, as 13059918400 + 6972083001 = 114280^2 + 83499^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20032001401 - 23 = 20032001393 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20032001461) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143961 + ... + 246553.
It is an arithmetic number, because the mean of its divisors is an integer number (2590754985).
Almost surely, 220032001401 is an apocalyptic number.
It is an amenable number.
20032001401 is a deficient number, since it is larger than the sum of its proper divisors (694038479).
20032001401 is a wasteful number, since it uses less digits than its factorization.
20032001401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109355.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 20032001401 its reverse (10410023002), we get a palindrome (30442024403).
The spelling of 20032001401 in words is "twenty billion, thirty-two million, one thousand, four hundred one".
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