Search a number
-
+
2987744256 = 210327291597
BaseRepresentation
bin1011001000010101…
…0101110000000000
321201012222010121200
42302011111300000
522104330304011
61212245421200
7134016256440
oct26205256000
97635863550
102987744256
1112a355a532
126b470a800
13387cb3013
14204b36120
15127472856
hexb2155c00

2987744256 has 264 divisors, whose sum is σ = 10205850720. Its totient is φ = 823689216.

The previous prime is 2987744233. The next prime is 2987744261. The reversal of 2987744256 is 6524477892.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1870050 + ... + 1871646.

Almost surely, 22987744256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2987744256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5102925360).

2987744256 is an abundant number, since it is smaller than the sum of its proper divisors (7218106464).

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

2987744256 is a wasteful number, since it uses less digits than its factorization.

2987744256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1638 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 2987744256 is about 54660.2621288995. The cubic root of 2987744256 is about 1440.2829073784.

The spelling of 2987744256 in words is "two billion, nine hundred eighty-seven million, seven hundred forty-four thousand, two hundred fifty-six".