Base | Representation |
---|---|
bin | 1010101000111011010000 |
3 | 12020200212222 |
4 | 22220323100 |
5 | 1203222242 |
6 | 135440212 |
7 | 32464256 |
oct | 12507320 |
9 | 5220788 |
10 | 2789072 |
11 | 1635520 |
12 | b26068 |
13 | 768650 |
14 | 5285d6 |
15 | 3a15d2 |
hex | 2a8ed0 |
2789072 has 80 divisors (see below), whose sum is σ = 6749568. Its totient is φ = 1098240.
The previous prime is 2789069. The next prime is 2789077. The reversal of 2789072 is 2709872.
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2789077) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52598 + ... + 52650.
22789072 is an apocalyptic number.
2789072 is a gapful number since it is divisible by the number (22) 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 2789072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3374784).
2789072 is an abundant number, since it is smaller than the sum of its proper divisors (3960496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2789072 is a wasteful number, since it uses less digits than its factorization.
2789072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108 (or 102 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 35.
The square root of 2789072 is about 1670.0514962120. The cubic root of 2789072 is about 140.7623715736.
The spelling of 2789072 in words is "two million, seven hundred eighty-nine thousand, seventy-two".
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