| Base | Representation |
|---|---|
| bin | 101001100000… |
| … | …011111101000 |
| 3 | 202110210221000 |
| 4 | 221200133220 |
| 5 | 10241143000 |
| 6 | 1025115000 |
| 7 | 161326014 |
| oct | 51403750 |
| 9 | 22423830 |
| 10 | 10881000 |
| 11 | 6162069 |
| 12 | 3788a60 |
| 13 | 233c880 |
| 14 | 1633544 |
| 15 | e4e000 |
| hex | a607e8 |
10881000 has 256 divisors, whose sum is σ = 41932800. Its totient is φ = 2592000.
The previous prime is 10880999. The next prime is 10881007. The reversal of 10881000 is 18801.
It is a happy number.
It is a super-2 number, since 2×108810002 = 236792322000000, which contains 22 as substring.
It is a hoax number, since the sum of its digits (18) 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 (18).
It is not an unprimeable number, because it can be changed into a prime (10881007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350985 + ... + 351015.
It is an arithmetic number, because the mean of its divisors is an integer number (163800).
Almost surely, 210881000 is an apocalyptic number.
10881000 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 10881000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20966400).
10881000 is an abundant number, since it is smaller than the sum of its proper divisors (31051800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10881000 is a wasteful number, since it uses less digits than its factorization.
10881000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74 (or 54 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
The square root of 10881000 is about 3298.6360817768. The cubic root of 10881000 is about 221.5931188591.
Adding to 10881000 its reverse (18801), we get a palindrome (10899801).
The spelling of 10881000 in words is "ten million, eight hundred eighty-one thousand".
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