Base | Representation |
---|---|
bin | 1010100101001110… |
… | …0011010100000000 |
3 | 21022221212002000100 |
4 | 2221103203110000 |
5 | 21304130144010 |
6 | 1145505122400 |
7 | 130250431605 |
oct | 25123432400 |
9 | 7287762010 |
10 | 2840474880 |
11 | 1228412901 |
12 | 673329400 |
13 | 36362bc89 |
14 | 1cd35c6ac |
15 | 1195822c0 |
hex | a94e3500 |
2840474880 has 108 divisors (see below), whose sum is σ = 9827787060. Its totient is φ = 757456896.
The previous prime is 2840474843. The next prime is 2840474881. The reversal of 2840474880 is 884740482.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 1237913856 + 1602561024 = 35184^2 + 40032^2 .
It is a super-2 number, since 2×28404748802 = 16136595087822028800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2840474881) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111765 + ... + 134804.
Almost surely, 22840474880 is an apocalyptic number.
2840474880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2840474880 is an abundant number, since it is smaller than the sum of its proper divisors (6987312180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2840474880 is a wasteful number, since it uses less digits than its factorization.
2840474880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 246596 (or 246579 counting only the distinct ones).
The product of its (nonzero) digits is 458752, while the sum is 45.
The square root of 2840474880 is about 53296.1056738670. The cubic root of 2840474880 is about 1416.2186773256.
The spelling of 2840474880 in words is "two billion, eight hundred forty million, four hundred seventy-four thousand, eight hundred eighty".
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