Base | Representation |
---|---|
bin | 1001111000100101000000 |
3 | 11212122020110 |
4 | 21320211000 |
5 | 1130403130 |
6 | 131311320 |
7 | 31011024 |
oct | 11704500 |
9 | 4778213 |
10 | 2591040 |
11 | 150a761 |
12 | a4b540 |
13 | 6c947a |
14 | 4b6384 |
15 | 362ab0 |
hex | 278940 |
2591040 has 56 divisors (see below), whose sum is σ = 8229600. Its totient is φ = 690688.
The previous prime is 2591027. The next prime is 2591041. The reversal of 2591040 is 401952.
It is a junction number, because it is equal to n+sod(n) for n = 2590998 and 2591016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2591041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390 + ... + 2309.
22591040 is an apocalyptic number.
2591040 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 2591040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4114800).
2591040 is an abundant number, since it is smaller than the sum of its proper divisors (5638560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2591040 is a wasteful number, since it uses less digits than its factorization.
2591040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2719 (or 2709 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 21.
The square root of 2591040 is about 1609.6707737920. The cubic root of 2591040 is about 137.3487482828.
Adding to 2591040 its reverse (401952), we get a palindrome (2992992).
The spelling of 2591040 in words is "two million, five hundred ninety-one thousand, forty".
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