Base | Representation |
---|---|
bin | 10010110011100101… |
… | …110101101011001101 |
3 | 1221010021112010001122 |
4 | 102303211311223031 |
5 | 312323341110104 |
6 | 13135420050325 |
7 | 1313253621545 |
oct | 226345655315 |
9 | 57107463048 |
10 | 20192910029 |
11 | 862240a1a6 |
12 | 3ab66939a5 |
13 | 1b9a64ba96 |
14 | d97b80325 |
15 | 7d2b746be |
hex | 4b3975acd |
20192910029 has 12 divisors (see below), whose sum is σ = 21455899668. Its totient is φ = 19000396800.
The previous prime is 20192910019. The next prime is 20192910083. The reversal of 20192910029 is 92001929102.
It can be written as a sum of positive squares in 6 ways, for example, as 4082954404 + 16109955625 = 63898^2 + 126925^2 .
It is not a de Polignac number, because 20192910029 - 24 = 20192910013 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20192910019) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867619 + ... + 1878399.
It is an arithmetic number, because the mean of its divisors is an integer number (1787991639).
Almost surely, 220192910029 is an apocalyptic number.
It is an amenable number.
20192910029 is a deficient number, since it is larger than the sum of its proper divisors (1262989639).
20192910029 is a wasteful number, since it uses less digits than its factorization.
20192910029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17296 (or 17279 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 35.
The spelling of 20192910029 in words is "twenty billion, one hundred ninety-two million, nine hundred ten thousand, twenty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •