| Base | Representation |
|---|---|
| bin | 100001001111011… |
| … | …1001101000100000 |
| 3 | 2212201211000112200 |
| 4 | 1002132321220200 |
| 5 | 4241020143030 |
| 6 | 302402453200 |
| 7 | 36432500151 |
| oct | 10236715040 |
| 9 | 2781730480 |
| 10 | 1115396640 |
| 11 | 522681006 |
| 12 | 271664200 |
| 13 | 14a111a17 |
| 14 | a81c9928 |
| 15 | 67dc7d60 |
| hex | 427b9a20 |
1115396640 has 144 divisors (see below), whose sum is σ = 3825372096. Its totient is φ = 295948800.
The previous prime is 1115396627. The next prime is 1115396657. The reversal of 1115396640 is 466935111.
1115396640 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 3 + 9 + 6 + 640 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1115396595 and 1115396604.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 302005 + ... + 305675.
It is an arithmetic number, because the mean of its divisors is an integer number (26565084).
Almost surely, 21115396640 is an apocalyptic number.
1115396640 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 1115396640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912686048).
1115396640 is an abundant number, since it is smaller than the sum of its proper divisors (2709975456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1115396640 is a wasteful number, since it uses less digits than its factorization.
1115396640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3903 (or 3892 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 36.
The square root of 1115396640 is about 33397.5544014828. The cubic root of 1115396640 is about 1037.0740737768.
The spelling of 1115396640 in words is "one billion, one hundred fifteen million, three hundred ninety-six thousand, six hundred forty".
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