| Base | Representation |
|---|---|
| bin | 100000111000101… |
| … | …0011111101010000 |
| 3 | 2211220022212010110 |
| 4 | 1001301103331100 |
| 5 | 4224440231330 |
| 6 | 301254401320 |
| 7 | 36226064160 |
| oct | 10161237520 |
| 9 | 2756285113 |
| 10 | 1103445840 |
| 11 | 516959212 |
| 12 | 269660240 |
| 13 | 1477b9243 |
| 14 | a67985a0 |
| 15 | 66d16db0 |
| hex | 41c53f50 |
1103445840 has 160 divisors (see below), whose sum is σ = 3922963200. Its totient is φ = 251338752.
The previous prime is 1103445839. The next prime is 1103445841. The reversal of 1103445840 is 485443011.
It is an interprime number because it is at equal distance from previous prime (1103445839) and next prime (1103445841).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 1103445798 and 1103445807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1103445841) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565186 + ... + 567134.
It is an arithmetic number, because the mean of its divisors is an integer number (24518520).
Almost surely, 21103445840 is an apocalyptic number.
1103445840 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 1103445840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961481600).
1103445840 is an abundant number, since it is smaller than the sum of its proper divisors (2819517360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1103445840 is a wasteful number, since it uses less digits than its factorization.
1103445840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2309 (or 2303 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 30.
The square root of 1103445840 is about 33218.1552768964. The cubic root of 1103445840 is about 1033.3568925141.
Adding to 1103445840 its reverse (485443011), we get a palindrome (1588888851).
The spelling of 1103445840 in words is "one billion, one hundred three million, four hundred forty-five thousand, eight hundred forty".
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