Base | Representation |
---|---|
bin | 1010100000011111… |
… | …1010111000011010 |
3 | 21021120112210022000 |
4 | 2220013322320122 |
5 | 21234041222344 |
6 | 1143520141430 |
7 | 126620054640 |
oct | 25007727032 |
9 | 7246483260 |
10 | 2820648474 |
11 | 1218200a46 |
12 | 668767876 |
13 | 35c4a9887 |
14 | 1ca87b190 |
15 | 117967a69 |
hex | a81fae1a |
2820648474 has 32 divisors (see below), whose sum is σ = 7163552640. Its totient is φ = 805899456.
The previous prime is 2820648473. The next prime is 2820648497. The reversal of 2820648474 is 4748460282.
2820648474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (2820648473) 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, 3730639 + ... + 3731394.
It is an arithmetic number, because the mean of its divisors is an integer number (223861020).
Almost surely, 22820648474 is an apocalyptic number.
2820648474 is an abundant number, since it is smaller than the sum of its proper divisors (4342904166).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2820648474 is a wasteful number, since it uses less digits than its factorization.
2820648474 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7462051 (or 7462045 counting only the distinct ones).
The product of its (nonzero) digits is 688128, while the sum is 45.
The square root of 2820648474 is about 53109.7775743789. Note that the first 3 decimals coincide. The cubic root of 2820648474 is about 1412.9159302852.
The spelling of 2820648474 in words is "two billion, eight hundred twenty million, six hundred forty-eight thousand, four hundred seventy-four".
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