Base | Representation |
---|---|
bin | 10010111010110000… |
… | …011100100100100101 |
3 | 1221102122201222122100 |
4 | 102322300130210211 |
5 | 313100130200201 |
6 | 13155352522313 |
7 | 1316243524101 |
oct | 227260344445 |
9 | 57378658570 |
10 | 20313131301 |
11 | 8684262221 |
12 | 3b2a9b0399 |
13 | 1bb9522628 |
14 | da9b16901 |
15 | 7dd4c0886 |
hex | 4bac1c925 |
20313131301 has 48 divisors (see below), whose sum is σ = 30495928320. Its totient is φ = 13021426080.
The previous prime is 20313131291. The next prime is 20313131303. The reversal of 20313131301 is 10313131302.
It is a happy number.
20313131301 is a `hidden beast` number, since 20 + 31 + 313 + 1 + 301 = 666.
It is not a de Polignac number, because 20313131301 - 226 = 20246022437 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20313131303) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5705760 + ... + 5709318.
It is an arithmetic number, because the mean of its divisors is an integer number (635331840).
Almost surely, 220313131301 is an apocalyptic number.
It is an amenable number.
20313131301 is a deficient number, since it is larger than the sum of its proper divisors (10182797019).
20313131301 is a wasteful number, since it uses less digits than its factorization.
20313131301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3846 (or 3843 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 20313131301 its reverse (10313131302), we get a palindrome (30626262603).
Subtracting from 20313131301 its reverse (10313131302), we obtain a palindrome (9999999999).
It can be divided in two parts, 203131 and 31301, that added together give a palindrome (234432).
The spelling of 20313131301 in words is "twenty billion, three hundred thirteen million, one hundred thirty-one thousand, three hundred one".
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