Base | Representation |
---|---|
bin | 100001101011001010000 |
3 | 2002001122011 |
4 | 10031121100 |
5 | 240302230 |
6 | 35352304 |
7 | 12244012 |
oct | 4153120 |
9 | 2061564 |
10 | 1103440 |
11 | 694038 |
12 | 452694 |
13 | 2c8330 |
14 | 20a1b2 |
15 | 16be2a |
hex | 10d650 |
1103440 has 40 divisors (see below), whose sum is σ = 2765448. Its totient is φ = 407040.
The previous prime is 1103437. The next prime is 1103449. The reversal of 1103440 is 443011.
It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 1056784 = 216^2 + 1028^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a self number, because there is not a number n which added to its sum of digits gives 1103440.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1103449) by changing a digit.
It is a nontrivial repunit in base 103.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510 + ... + 1570.
21103440 is an apocalyptic number.
1103440 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 1103440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382724).
1103440 is an abundant number, since it is smaller than the sum of its proper divisors (1662008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1103440 is a wasteful number, since it uses less digits than its factorization.
1103440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1087 (or 1081 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 1103440 is about 1050.4475236774. The cubic root of 1103440 is about 103.3355069493.
Adding to 1103440 its reverse (443011), we get a palindrome (1546451).
The spelling of 1103440 in words is "one million, one hundred three thousand, four hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •