| Base | Representation |
|---|---|
| bin | 100001000100010… |
| … | …0011010100110100 |
| 3 | 2212022210101010201 |
| 4 | 1002020203110310 |
| 5 | 4233020204400 |
| 6 | 302033130244 |
| 7 | 36331626646 |
| oct | 10210432464 |
| 9 | 2768711121 |
| 10 | 1109538100 |
| 11 | 51a33a440 |
| 12 | 26b6b9984 |
| 13 | 148b40228 |
| 14 | a7502896 |
| 15 | 6761c06a |
| hex | 42223534 |
1109538100 has 72 divisors (see below), whose sum is σ = 2640830976. Its totient is φ = 401280000.
The previous prime is 1109538097. The next prime is 1109538103. The reversal of 1109538100 is 18359011.
It is an interprime number because it is at equal distance from previous prime (1109538097) and next prime (1109538103).
It is a super-2 number, since 2×11095381002 = 2462149590703220000, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1109538103) 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 23 ways as a sum of consecutive naturals, for example, 207460 + ... + 212740.
It is an arithmetic number, because the mean of its divisors is an integer number (36678208).
Almost surely, 21109538100 is an apocalyptic number.
1109538100 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 1109538100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320415488).
1109538100 is an abundant number, since it is smaller than the sum of its proper divisors (1531292876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1109538100 is a wasteful number, since it uses less digits than its factorization.
1109538100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5497 (or 5490 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 28.
The square root of 1109538100 is about 33309.7298097718. The cubic root of 1109538100 is about 1035.2551666913.
Subtracting from 1109538100 its reverse (18359011), we obtain a square (1091179089 = 330332).
The spelling of 1109538100 in words is "one billion, one hundred nine million, five hundred thirty-eight thousand, one hundred".
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