Base | Representation |
---|---|
bin | 10010111010000011… |
… | …010101000110010101 |
3 | 1221101211111002221001 |
4 | 102322003111012111 |
5 | 313034113213323 |
6 | 13154251223301 |
7 | 1316041144561 |
oct | 227203250625 |
9 | 57354432831 |
10 | 20301304213 |
11 | 8678614373 |
12 | 3b26a47b31 |
13 | 1bb6c41258 |
14 | da83186a1 |
15 | 7dc4363ad |
hex | 4ba0d5195 |
20301304213 has 8 divisors (see below), whose sum is σ = 20397370968. Its totient is φ = 20205314304.
The previous prime is 20301304207. The next prime is 20301304229. The reversal of 20301304213 is 31240310302.
It can be written as a sum of positive squares in 4 ways, for example, as 9405702289 + 10895601924 = 96983^2 + 104382^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20301304213 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20301304253) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549945 + ... + 585697.
It is an arithmetic number, because the mean of its divisors is an integer number (2549671371).
Almost surely, 220301304213 is an apocalyptic number.
It is an amenable number.
20301304213 is a deficient number, since it is larger than the sum of its proper divisors (96066755).
20301304213 is a wasteful number, since it uses less digits than its factorization.
20301304213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38423.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 20301304213 its reverse (31240310302), we get a palindrome (51541614515).
The spelling of 20301304213 in words is "twenty billion, three hundred one million, three hundred four thousand, two hundred thirteen".
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