Base | Representation |
---|---|
bin | 1010101111000000… |
… | …0000110101000000 |
3 | 21102211000212111202 |
4 | 2223300000311000 |
5 | 21400130141430 |
6 | 1153532200332 |
7 | 131256156116 |
oct | 25360006500 |
9 | 7384025452 |
10 | 2881490240 |
11 | 12495872a2 |
12 | 6850090a8 |
13 | 36bc8ca15 |
14 | 1d4997ab6 |
15 | 11ce84d45 |
hex | abc00d40 |
2881490240 has 56 divisors (see below), whose sum is σ = 6948464640. Its totient is φ = 1137996288.
The previous prime is 2881490221. The next prime is 2881490281. The reversal of 2881490240 is 420941882.
It is a junction number, because it is equal to n+sod(n) for n = 2881490194 and 2881490203.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31712 + ... + 82271.
Almost surely, 22881490240 is an apocalyptic number.
2881490240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2881490240 is an abundant number, since it is smaller than the sum of its proper divisors (4066974400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2881490240 is a wasteful number, since it uses less digits than its factorization.
2881490240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114079 (or 114069 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 38.
The square root of 2881490240 is about 53679.5141557745. The cubic root of 2881490240 is about 1423.0026787720.
The spelling of 2881490240 in words is "two billion, eight hundred eighty-one million, four hundred ninety thousand, two hundred forty".
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