Base | Representation |
---|---|
bin | 100000001110010… |
… | …0111100100011100 |
3 | 2210100112212211120 |
4 | 1000130213210130 |
5 | 4203244301212 |
6 | 255142450540 |
7 | 35536264446 |
oct | 10034474434 |
9 | 2710485746 |
10 | 1081243932 |
11 | 50537462a |
12 | 262133a50 |
13 | 143014812 |
14 | a3859496 |
15 | 64dcd88c |
hex | 4072791c |
1081243932 has 24 divisors (see below), whose sum is σ = 2523756816. Its totient is φ = 360292608.
The previous prime is 1081243931. The next prime is 1081243981. The reversal of 1081243932 is 2393421801.
It is a junction number, because it is equal to n+sod(n) for n = 1081243893 and 1081243902.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1081243931) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26158 + ... + 53354.
It is an arithmetic number, because the mean of its divisors is an integer number (105156534).
Almost surely, 21081243932 is an apocalyptic number.
1081243932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1081243932 is an abundant number, since it is smaller than the sum of its proper divisors (1442512884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1081243932 is a wasteful number, since it uses less digits than its factorization.
1081243932 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30517 (or 30515 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 33.
The square root of 1081243932 is about 32882.2738264859. The cubic root of 1081243932 is about 1026.3793231296.
The spelling of 1081243932 in words is "one billion, eighty-one million, two hundred forty-three thousand, nine hundred thirty-two".
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