Base | Representation |
---|---|
bin | 1010101010100101… |
… | …1011000001001010 |
3 | 21101112012201111020 |
4 | 2222221123001022 |
5 | 21330411012130 |
6 | 1152031413310 |
7 | 130642654614 |
oct | 25251330112 |
9 | 7345181436 |
10 | 2862985290 |
11 | 123a098250 |
12 | 67a984236 |
13 | 3681b0c49 |
14 | 1d233bdb4 |
15 | 11b52be10 |
hex | aaa5b04a |
2862985290 has 64 divisors (see below), whose sum is σ = 7529034240. Its totient is φ = 690981440.
The previous prime is 2862985267. The next prime is 2862985291. The reversal of 2862985290 is 925892682.
It is not an unprimeable number, because it can be changed into a prime (2862985291) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55801 + ... + 94019.
It is an arithmetic number, because the mean of its divisors is an integer number (117641160).
Almost surely, 22862985290 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2862985290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3764517120).
2862985290 is an abundant number, since it is smaller than the sum of its proper divisors (4666048950).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2862985290 is a wasteful number, since it uses less digits than its factorization.
2862985290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38467.
The product of its (nonzero) digits is 1244160, while the sum is 51.
The square root of 2862985290 is about 53506.8714278830. The cubic root of 2862985290 is about 1419.9499569086.
The spelling of 2862985290 in words is "two billion, eight hundred sixty-two million, nine hundred eighty-five thousand, two hundred ninety".
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