Base | Representation |
---|---|
bin | 10010101111111010… |
… | …110100011010010100 |
3 | 1220221222121001101012 |
4 | 102233322310122110 |
5 | 312212103113022 |
6 | 13125335351352 |
7 | 1311605143454 |
oct | 225772643224 |
9 | 56858531335 |
10 | 20131301012 |
11 | 85a065a459 |
12 | 3a99b22558 |
13 | 1b8a95a644 |
14 | d8d903d64 |
15 | 7cc554de2 |
hex | 4afeb4694 |
20131301012 has 12 divisors (see below), whose sum is σ = 35578587156. Its totient is φ = 9965990400.
The previous prime is 20131300999. The next prime is 20131301027. The reversal of 20131301012 is 21010313102.
It can be written as a sum of positive squares in 2 ways, for example, as 19632493456 + 498807556 = 140116^2 + 22334^2 .
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 24914573 + ... + 24915380.
It is an arithmetic number, because the mean of its divisors is an integer number (2964882263).
Almost surely, 220131301012 is an apocalyptic number.
It is an amenable number.
20131301012 is a deficient number, since it is larger than the sum of its proper divisors (15447286144).
20131301012 is a wasteful number, since it uses less digits than its factorization.
20131301012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49830058 (or 49830056 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 20131301012 its reverse (21010313102), we get a palindrome (41141614114).
The spelling of 20131301012 in words is "twenty billion, one hundred thirty-one million, three hundred one thousand, twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •