Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110010110010011 |
3 | 1220201000102112011110 |
4 | 102221331112112103 |
5 | 312011003113021 |
6 | 13111404144403 |
7 | 1306252151331 |
oct | 225175262623 |
9 | 56630375143 |
10 | 20031301011 |
11 | 854a168a27 |
12 | 3a70538103 |
13 | 1b73016b47 |
14 | d80512b51 |
15 | 7c38a0476 |
hex | 4a9f56593 |
20031301011 has 8 divisors (see below), whose sum is σ = 26730102784. Its totient is φ = 13343349960.
The previous prime is 20031301009. The next prime is 20031301027. The reversal of 20031301011 is 11010313002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20031301011 - 21 = 20031301009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20031301211) 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, 2708371 + ... + 2715756.
It is an arithmetic number, because the mean of its divisors is an integer number (3341262848).
Almost surely, 220031301011 is an apocalyptic number.
20031301011 is a deficient number, since it is larger than the sum of its proper divisors (6698801773).
20031301011 is a wasteful number, since it uses less digits than its factorization.
20031301011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5425361.
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 20031301011 its reverse (11010313002), we get a palindrome (31041614013).
The spelling of 20031301011 in words is "twenty billion, thirty-one million, three hundred one thousand, eleven".
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