Base | Representation |
---|---|
bin | 10011000001011011… |
… | …100111100111101001 |
3 | 1221201110110012100011 |
4 | 103001123213213221 |
5 | 313312312041131 |
6 | 13214433011521 |
7 | 1322103405415 |
oct | 230133474751 |
9 | 57643405304 |
10 | 20425112041 |
11 | 8731496a94 |
12 | 3b603b3ba1 |
13 | 1c0679c419 |
14 | dba945d45 |
15 | 7e82400b1 |
hex | 4c16e79e9 |
20425112041 has 8 divisors (see below), whose sum is σ = 20702534600. Its totient is φ = 20149326720.
The previous prime is 20425111999. The next prime is 20425112053. The reversal of 20425112041 is 14021152402.
It can be written as a sum of positive squares in 4 ways, for example, as 15297979225 + 5127132816 = 123685^2 + 71604^2 .
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 20425112041 - 27 = 20425111913 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20425122041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384180 + ... + 434101.
It is an arithmetic number, because the mean of its divisors is an integer number (2587816825).
Almost surely, 220425112041 is an apocalyptic number.
It is an amenable number.
20425112041 is a deficient number, since it is larger than the sum of its proper divisors (277422559).
20425112041 is a wasteful number, since it uses less digits than its factorization.
20425112041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 818619.
The product of its (nonzero) digits is 640, while the sum is 22.
Adding to 20425112041 its reverse (14021152402), we get a palindrome (34446264443).
The spelling of 20425112041 in words is "twenty billion, four hundred twenty-five million, one hundred twelve thousand, forty-one".
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