| Base | Representation |
|---|---|
| bin | 110011001001111111… |
| … | …1011001010000000000 |
| 3 | 101111120010102110002200 |
| 4 | 1212103333121100000 |
| 5 | 3244441401123043 |
| 6 | 122245001513200 |
| 7 | 10636234350261 |
| oct | 1462377312000 |
| 9 | 344503373080 |
| 10 | 109857051648 |
| 11 | 42654494983 |
| 12 | 1935aaa2800 |
| 13 | a4899c9896 |
| 14 | 5462212968 |
| 15 | 2cce7ac7d3 |
| hex | 1993fd9400 |
109857051648 has 132 divisors (see below), whose sum is σ = 325784103060. Its totient is φ = 35629203456.
The previous prime is 109857051643. The next prime is 109857051659. The reversal of 109857051648 is 846150758901.
It is a happy number.
109857051648 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 570 + 5 + 1 + 64 + 8 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 73653617664 + 36203433984 = 271392^2 + 190272^2 .
It is a super-3 number, since 3×1098570516483 (a number of 34 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 109857051594 and 109857051603.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (109857051643) 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 11 ways as a sum of consecutive naturals, for example, 179908 + ... + 502076.
Almost surely, 2109857051648 is an apocalyptic number.
109857051648 is a gapful number since it is divisible by the number (18) 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 109857051648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162892051530).
109857051648 is an abundant number, since it is smaller than the sum of its proper divisors (215927051412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
109857051648 is a wasteful number, since it uses less digits than its factorization.
109857051648 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 322232 (or 322211 counting only the distinct ones).
The product of its (nonzero) digits is 2419200, while the sum is 54.
The spelling of 109857051648 in words is "one hundred nine billion, eight hundred fifty-seven million, fifty-one thousand, six hundred forty-eight".
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