Base | Representation |
---|---|
bin | 10010111011110101… |
… | …000010011011000010 |
3 | 1221110220120111200222 |
4 | 102323311002123002 |
5 | 313114231042010 |
6 | 13201234143042 |
7 | 1316552413250 |
oct | 227365023302 |
9 | 57426514628 |
10 | 20331112130 |
11 | 869342350a |
12 | 3b34a21a82 |
13 | 1bc0179984 |
14 | dac2775d0 |
15 | 7ded73355 |
hex | 4bbd426c2 |
20331112130 has 16 divisors (see below), whose sum is σ = 41824002240. Its totient is φ = 6970666992.
The previous prime is 20331112111. The next prime is 20331112169. The reversal of 20331112130 is 3121113302.
It is a junction number, because it is equal to n+sod(n) for n = 20331112099 and 20331112108.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145222160 + ... + 145222299.
It is an arithmetic number, because the mean of its divisors is an integer number (2614000140).
Almost surely, 220331112130 is an apocalyptic number.
20331112130 is an abundant number, since it is smaller than the sum of its proper divisors (21492890110).
20331112130 is a wasteful number, since it uses less digits than its factorization.
20331112130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 290444473.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 20331112130 its reverse (3121113302), we get a palindrome (23452225432).
The spelling of 20331112130 in words is "twenty billion, three hundred thirty-one million, one hundred twelve thousand, one hundred thirty".
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