| Base | Representation |
|---|---|
| bin | 10110101111100… |
| … | …00101110000000 |
| 3 | 111021222112112202 |
| 4 | 23113300232000 |
| 5 | 342314400430 |
| 6 | 30533012332 |
| 7 | 4504405532 |
| oct | 1327605600 |
| 9 | 437875482 |
| 10 | 190778240 |
| 11 | 98764574 |
| 12 | 53a840a8 |
| 13 | 306a8a43 |
| 14 | 1b4a1852 |
| 15 | 11b36d45 |
| hex | b5f0b80 |
190778240 has 128 divisors (see below), whose sum is σ = 497556000. Its totient is φ = 69672960.
The previous prime is 190778227. The next prime is 190778243. The reversal of 190778240 is 42877091.
It is a tau number, because it is divible by the number of its divisors (128).
It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (38).
It is a junction number, because it is equal to n+sod(n) for n = 190778194 and 190778203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (190778243) 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 15 ways as a sum of consecutive naturals, for example, 352370 + ... + 352910.
Almost surely, 2190778240 is an apocalyptic number.
190778240 is a gapful number since it is divisible by the number (10) 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 190778240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248778000).
190778240 is an abundant number, since it is smaller than the sum of its proper divisors (306777760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
190778240 is a wasteful number, since it uses less digits than its factorization.
190778240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 608 (or 596 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 38.
The square root of 190778240 is about 13812.2496357400. The cubic root of 190778240 is about 575.6735547356.
It can be divided in two parts, 190 and 778240, that multiplied together give a square (147865600 = 121602).
The spelling of 190778240 in words is "one hundred ninety million, seven hundred seventy-eight thousand, two hundred forty".
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