Base | Representation |
---|---|
bin | 10010110100111011… |
… | …011001111111101101 |
3 | 1221011211201201121201 |
4 | 102310323121333231 |
5 | 312400111403122 |
6 | 13141540525501 |
7 | 1313645364223 |
oct | 226473317755 |
9 | 57154651551 |
10 | 20215341037 |
11 | 863403aa21 |
12 | 3b020b0891 |
13 | 1ba21a3878 |
14 | d9ab3cb13 |
15 | 7d4b05a27 |
hex | 4b4ed9fed |
20215341037 has 4 divisors (see below), whose sum is σ = 20596762620. Its totient is φ = 19833919456.
The previous prime is 20215341017. The next prime is 20215341101. The reversal of 20215341037 is 73014351202.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 13831171236 + 6384169801 = 117606^2 + 79901^2 .
It is a cyclic number.
It is not a de Polignac number, because 20215341037 - 211 = 20215338989 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20215340996 and 20215341014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20215341017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190710712 + ... + 190710817.
It is an arithmetic number, because the mean of its divisors is an integer number (5149190655).
Almost surely, 220215341037 is an apocalyptic number.
It is an amenable number.
20215341037 is a deficient number, since it is larger than the sum of its proper divisors (381421583).
20215341037 is an equidigital number, since it uses as much as digits as its factorization.
20215341037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 381421582.
The product of its (nonzero) digits is 5040, while the sum is 28.
Adding to 20215341037 its reverse (73014351202), we get a palindrome (93229692239).
The spelling of 20215341037 in words is "twenty billion, two hundred fifteen million, three hundred forty-one thousand, thirty-seven".
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