Base | Representation |
---|---|
bin | 1001001010010000000000 |
3 | 11111222221022 |
4 | 21022100000 |
5 | 1103320110 |
6 | 123245012 |
7 | 26260550 |
oct | 11122000 |
9 | 4458838 |
10 | 2401280 |
11 | 13a0132 |
12 | 979768 |
13 | 660c9b |
14 | 467160 |
15 | 326755 |
hex | 24a400 |
2401280 has 88 divisors (see below), whose sum is σ = 6681408. Its totient is φ = 811008.
The previous prime is 2401279. The next prime is 2401303. The reversal of 2401280 is 821042.
It is a super-2 number, since 2×24012802 = 11532291276800, which contains 22 as substring.
It is a zygodrome in base 8.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35807 + ... + 35873.
22401280 is an apocalyptic number.
2401280 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 2401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3340704).
2401280 is an abundant number, since it is smaller than the sum of its proper divisors (4280128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2401280 is an equidigital number, since it uses as much as digits as its factorization.
2401280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99 (or 81 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 17.
The square root of 2401280 is about 1549.6064016388. The cubic root of 2401280 is about 133.9103878467.
The spelling of 2401280 in words is "two million, four hundred one thousand, two hundred eighty".
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