Search a number
-
+
2887422720 = 28357138263
BaseRepresentation
bin1010110000011010…
…1001001100000000
321110020012021100020
42230012221030000
521403140011340
61154303253440
7131360455020
oct25406511400
97406167306
102887422720
111251969476
12686baa280
13370289070
141d569da80
1511d7579d0
hexac1a9300

2887422720 has 288 divisors, whose sum is σ = 11351165952. Its totient is φ = 609140736.

The previous prime is 2887422719. The next prime is 2887422763. The reversal of 2887422720 is 272247882.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 345309 + ... + 353571.

Almost surely, 22887422720 is an apocalyptic number.

2887422720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2887422720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5675582976).

2887422720 is an abundant number, since it is smaller than the sum of its proper divisors (8463743232).

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

2887422720 is a wasteful number, since it uses less digits than its factorization.

2887422720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8307 (or 8293 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 2887422720 is about 53734.7440675025. The cubic root of 2887422720 is about 1423.9785798234.

The spelling of 2887422720 in words is "two billion, eight hundred eighty-seven million, four hundred twenty-two thousand, seven hundred twenty".