| Base | Representation |
|---|---|
| bin | 111111111000100… |
| … | …110001000011000 |
| 3 | 2202200210010101000 |
| 4 | 333320212020120 |
| 5 | 4143340111411 |
| 6 | 254204225000 |
| 7 | 35363104560 |
| oct | 7770461030 |
| 9 | 2680703330 |
| 10 | 1071800856 |
| 11 | 500004935 |
| 12 | 25ab3b160 |
| 13 | 1410895b9 |
| 14 | a24bbda0 |
| 15 | 64165956 |
| hex | 3fe26218 |
1071800856 has 128 divisors (see below), whose sum is σ = 3415104000. Its totient is φ = 305099136.
The previous prime is 1071800797. The next prime is 1071800861. The reversal of 1071800856 is 6580081701.
1071800856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×10718008562 = 2297514149844665472, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) 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 (36).
It is a self number, because there is not a number n which added to its sum of digits gives 1071800856.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463030 + ... + 465338.
It is an arithmetic number, because the mean of its divisors is an integer number (26680500).
Almost surely, 21071800856 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1071800856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707552000).
1071800856 is an abundant number, since it is smaller than the sum of its proper divisors (2343303144).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1071800856 is a wasteful number, since it uses less digits than its factorization.
1071800856 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2638 (or 2628 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 36.
The square root of 1071800856 is about 32738.3697822601. The cubic root of 1071800856 is about 1023.3826107288.
The spelling of 1071800856 in words is "one billion, seventy-one million, eight hundred thousand, eight hundred fifty-six".
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