Search a number
-
+
2886660340 = 225144333017
BaseRepresentation
bin1010110000001110…
…1111000011110100
321110011202112112221
42230003233003310
521402441112330
61154235052124
7131351131234
oct25403570364
97404675487
102886660340
111251498703
126868a1044
13370080055
141d5541cc4
1511d656b7a
hexac0ef0f4

2886660340 has 12 divisors (see below), whose sum is σ = 6061986756. Its totient is φ = 1154664128.

The previous prime is 2886660311. The next prime is 2886660349. The reversal of 2886660340 is 430666882.

2886660340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 592825104 + 2293835236 = 24348^2 + 47894^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2886660349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72166489 + ... + 72166528.

It is an arithmetic number, because the mean of its divisors is an integer number (505165563).

Almost surely, 22886660340 is an apocalyptic number.

2886660340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2886660340 is an abundant number, since it is smaller than the sum of its proper divisors (3175326416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2886660340 is a wasteful number, since it uses less digits than its factorization.

2886660340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144333026 (or 144333024 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 2886660340 is about 53727.6496787269. The cubic root of 2886660340 is about 1423.8532421716.

The spelling of 2886660340 in words is "two billion, eight hundred eighty-six million, six hundred sixty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 144333017 288666034 577332068 721665085 1443330170 2886660340