| Base | Representation |
|---|---|
| bin | 1101000000101… |
| … | …01011101100011 |
| 3 | 21121100212200020 |
| 4 | 12200111131203 |
| 5 | 210414433221 |
| 6 | 14455124523 |
| 7 | 2463446604 |
| oct | 640253543 |
| 9 | 247325606 |
| 10 | 109139811 |
| 11 | 566743a0 |
| 12 | 30673743 |
| 13 | 197c3991 |
| 14 | 106cddab |
| 15 | 98acac6 |
| hex | 6815763 |
109139811 has 8 divisors (see below), whose sum is σ = 158748864. Its totient is φ = 66145320.
The previous prime is 109139803. The next prime is 109139837. The reversal of 109139811 is 118931901.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 109139811 - 23 = 109139803 is a prime.
It is a super-2 number, since 2×1091398112 = 23822996690231442, which contains 22 as substring.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3307267 = 109139811 / (1 + 0 + 9 + 1 + 3 + 9 + 8 + 1 + 1).
It is not an unprimeable number, because it can be changed into a prime (109139801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653601 + ... + 1653666.
It is an arithmetic number, because the mean of its divisors is an integer number (19843608).
Almost surely, 2109139811 is an apocalyptic number.
109139811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
109139811 is a deficient number, since it is larger than the sum of its proper divisors (49609053).
109139811 is a wasteful number, since it uses less digits than its factorization.
109139811 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3307281.
The product of its (nonzero) digits is 1944, while the sum is 33.
The square root of 109139811 is about 10447.0000957213. Note that the first 4 decimals coincide. The cubic root of 109139811 is about 477.8897684693.
The spelling of 109139811 in words is "one hundred nine million, one hundred thirty-nine thousand, eight hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •