Base | Representation |
---|---|
bin | 1011001110011100000000 |
3 | 12112111122122 |
4 | 23032130000 |
5 | 1223131340 |
6 | 143023412 |
7 | 34004234 |
oct | 13163400 |
9 | 5474578 |
10 | 2942720 |
11 | 172aa00 |
12 | b9ab68 |
13 | 7c0571 |
14 | 5685c4 |
15 | 3d1db5 |
hex | 2ce700 |
2942720 has 108 divisors (see below), whose sum is σ = 8155560. Its totient is φ = 1013760.
The previous prime is 2942713. The next prime is 2942729. The reversal of 2942720 is 272492.
It is a self number, because there is not a number n which added to its sum of digits gives 2942720.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2942729) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154871 + ... + 154889.
22942720 is an apocalyptic number.
2942720 is a gapful number since it is divisible by the number (20) 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 2942720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4077780).
2942720 is an abundant number, since it is smaller than the sum of its proper divisors (5212840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2942720 is a wasteful number, since it uses less digits than its factorization.
2942720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62 (or 37 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 2942720 is about 1715.4358046864. The cubic root of 2942720 is about 143.3011405376.
The spelling of 2942720 in words is "two million, nine hundred forty-two thousand, seven hundred twenty".
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