| Base | Representation |
|---|---|
| bin | 10100010101101000… |
| … | …01001111111100100 |
| 3 | 1001011221202200221200 |
| 4 | 22022310021333210 |
| 5 | 134330212102240 |
| 6 | 5003245042500 |
| 7 | 534402542205 |
| oct | 121264117744 |
| 9 | 31157680850 |
| 10 | 10918862820 |
| 11 | 46a3460278 |
| 12 | 2148856430 |
| 13 | 1050189798 |
| 14 | 7581cd5ac |
| 15 | 43d8b3930 |
| hex | 28ad09fe4 |
10918862820 has 72 divisors (see below), whose sum is σ = 33194561400. Its totient is φ = 2905190400.
The previous prime is 10918862797. The next prime is 10918862839. The reversal of 10918862820 is 2826881901.
It is a happy number.
10918862820 is a `hidden beast` number, since 1 + 0 + 9 + 18 + 8 + 628 + 2 + 0 = 666.
10918862820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 18249984 + 10900612836 = 4272^2 + 104406^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 13270 + ... + 148370.
It is an arithmetic number, because the mean of its divisors is an integer number (461035575).
Almost surely, 210918862820 is an apocalyptic number.
10918862820 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 10918862820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16597280700).
10918862820 is an abundant number, since it is smaller than the sum of its proper divisors (22275698580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10918862820 is a wasteful number, since it uses less digits than its factorization.
10918862820 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 135565 (or 135560 counting only the distinct ones).
The product of its (nonzero) digits is 110592, while the sum is 45.
The spelling of 10918862820 in words is "ten billion, nine hundred eighteen million, eight hundred sixty-two thousand, eight hundred twenty".
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