| Base | Representation |
|---|---|
| bin | 10111110101011… |
| … | …01100111000110 |
| 3 | 111221020000212120 |
| 4 | 23322231213012 |
| 5 | 402141044200 |
| 6 | 31501230410 |
| 7 | 4645316025 |
| oct | 1372554706 |
| 9 | 457200776 |
| 10 | 199940550 |
| 11 | a2952327 |
| 12 | 56b62406 |
| 13 | 32566224 |
| 14 | 1c7a88bc |
| 15 | 128469a0 |
| hex | bead9c6 |
199940550 has 48 divisors (see below), whose sum is σ = 497474112. Its totient is φ = 53143200.
The previous prime is 199940549. The next prime is 199940551. The reversal of 199940550 is 55049991.
It is a happy number.
199940550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (199940549) and next prime (199940551).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (199940551) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 47637 + ... + 51663.
It is an arithmetic number, because the mean of its divisors is an integer number (10364044).
Almost surely, 2199940550 is an apocalyptic number.
199940550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 199940550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248737056).
199940550 is an abundant number, since it is smaller than the sum of its proper divisors (297533562).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
199940550 is a wasteful number, since it uses less digits than its factorization.
199940550 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4373 (or 4368 counting only the distinct ones).
The product of its (nonzero) digits is 72900, while the sum is 42.
The square root of 199940550 is about 14140.0335926051. The cubic root of 199940550 is about 584.7455976155.
The spelling of 199940550 in words is "one hundred ninety-nine million, nine hundred forty thousand, five hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •