Base | Representation |
---|---|
bin | 10010101101011000… |
… | …010101010110010101 |
3 | 1220212000110000121221 |
4 | 102231120111112111 |
5 | 312120202101303 |
6 | 13121214410341 |
7 | 1310550121204 |
oct | 225530252625 |
9 | 56760400557 |
10 | 20088706453 |
11 | 8579607542 |
12 | 3a878009b1 |
13 | 1b81b95b6a |
14 | d87db723b |
15 | 7c893e4bd |
hex | 4ad615595 |
20088706453 has 4 divisors (see below), whose sum is σ = 20096646048. Its totient is φ = 20080766860.
The previous prime is 20088706447. The next prime is 20088706471. The reversal of 20088706453 is 35460788002.
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 20088706453 - 29 = 20088705941 is a prime.
It is a super-2 number, since 2×200887064532 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20088706423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3966001 + ... + 3971062.
It is an arithmetic number, because the mean of its divisors is an integer number (5024161512).
Almost surely, 220088706453 is an apocalyptic number.
It is an amenable number.
20088706453 is a deficient number, since it is larger than the sum of its proper divisors (7939595).
20088706453 is an equidigital number, since it uses as much as digits as its factorization.
20088706453 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7939594.
The product of its (nonzero) digits is 322560, while the sum is 43.
The spelling of 20088706453 in words is "twenty billion, eighty-eight million, seven hundred six thousand, four hundred fifty-three".
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