| Base | Representation |
|---|---|
| bin | 10111110101110… |
| … | …11100001011100 |
| 3 | 111221022221001000 |
| 4 | 23322323201130 |
| 5 | 402144410112 |
| 6 | 31502350300 |
| 7 | 4645644120 |
| oct | 1372734134 |
| 9 | 457287030 |
| 10 | 199997532 |
| 11 | a2991119 |
| 12 | 56b8b390 |
| 13 | 32586147 |
| 14 | 1c7c1580 |
| 15 | 128587dc |
| hex | bebb85c |
199997532 has 96 divisors (see below), whose sum is σ = 597219840. Its totient is φ = 56695680.
The previous prime is 199997531. The next prime is 199997573. The reversal of 199997532 is 235799991.
199997532 is a `hidden beast` number, since 19 + 9 + 9 + 97 + 532 = 666.
199997532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (199997531) 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 31 ways as a sum of consecutive naturals, for example, 102607 + ... + 104537.
It is an arithmetic number, because the mean of its divisors is an integer number (6221040).
Almost surely, 2199997532 is an apocalyptic number.
199997532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 199997532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298609920).
199997532 is an abundant number, since it is smaller than the sum of its proper divisors (397222308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
199997532 is a wasteful number, since it uses less digits than its factorization.
199997532 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2088 (or 2080 counting only the distinct ones).
The product of its digits is 1377810, while the sum is 54.
The square root of 199997532 is about 14142.0483664850. The cubic root of 199997532 is about 584.8011421408.
The spelling of 199997532 in words is "one hundred ninety-nine million, nine hundred ninety-seven thousand, five hundred thirty-two".
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