Base | Representation |
---|---|
bin | 10010111011111100… |
… | …001111100110101011 |
3 | 1221111001010110220222 |
4 | 102323330033212223 |
5 | 313120222014011 |
6 | 13201342440255 |
7 | 1316604441452 |
oct | 227374174653 |
9 | 57431113828 |
10 | 20333001131 |
11 | 86944a3773 |
12 | 3b3559308b |
13 | 1bc068b721 |
14 | dac609b99 |
15 | 7e00e7ddb |
hex | 4bbf0f9ab |
20333001131 has 8 divisors (see below), whose sum is σ = 20387823120. Its totient is φ = 20278209952.
The previous prime is 20333001109. The next prime is 20333001133. The reversal of 20333001131 is 13110033302.
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 20333001131 - 214 = 20332984747 is a prime.
It is a super-2 number, since 2×203330011312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20333001133) 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, 1978001 + ... + 1988253.
It is an arithmetic number, because the mean of its divisors is an integer number (2548477890).
Almost surely, 220333001131 is an apocalyptic number.
20333001131 is a deficient number, since it is larger than the sum of its proper divisors (54821989).
20333001131 is a wasteful number, since it uses less digits than its factorization.
20333001131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15405.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 20333001131 its reverse (13110033302), we get a palindrome (33443034433).
The spelling of 20333001131 in words is "twenty billion, three hundred thirty-three million, one thousand, one hundred thirty-one".
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